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![Linus Torvalds](/assets/img/avatar_default.png)
F_SEAL_EXEC") which permits the setting of the memfd execute bit at memfd creation time, with the option of sealing the state of the X bit. - Peter Xu adds a patch series ("mm/hugetlb: Make huge_pte_offset() thread-safe for pmd unshare") which addresses a rare race condition related to PMD unsharing. - Several folioification patch serieses from Matthew Wilcox, Vishal Moola, Sidhartha Kumar and Lorenzo Stoakes - Johannes Weiner has a series ("mm: push down lock_page_memcg()") which does perform some memcg maintenance and cleanup work. - SeongJae Park has added DAMOS filtering to DAMON, with the series "mm/damon/core: implement damos filter". These filters provide users with finer-grained control over DAMOS's actions. SeongJae has also done some DAMON cleanup work. - Kairui Song adds a series ("Clean up and fixes for swap"). - Vernon Yang contributed the series "Clean up and refinement for maple tree". - Yu Zhao has contributed the "mm: multi-gen LRU: memcg LRU" series. It adds to MGLRU an LRU of memcgs, to improve the scalability of global reclaim. - David Hildenbrand has added some userfaultfd cleanup work in the series "mm: uffd-wp + change_protection() cleanups". - Christoph Hellwig has removed the generic_writepages() library function in the series "remove generic_writepages". - Baolin Wang has performed some maintenance on the compaction code in his series "Some small improvements for compaction". - Sidhartha Kumar is doing some maintenance work on struct page in his series "Get rid of tail page fields". - David Hildenbrand contributed some cleanup, bugfixing and generalization of pte management and of pte debugging in his series "mm: support __HAVE_ARCH_PTE_SWP_EXCLUSIVE on all architectures with swap PTEs". - Mel Gorman and Neil Brown have removed the __GFP_ATOMIC allocation flag in the series "Discard __GFP_ATOMIC". - Sergey Senozhatsky has improved zsmalloc's memory utilization with his series "zsmalloc: make zspage chain size configurable". - Joey Gouly has added prctl() support for prohibiting the creation of writeable+executable mappings. The previous BPF-based approach had shortcomings. See "mm: In-kernel support for memory-deny-write-execute (MDWE)". - Waiman Long did some kmemleak cleanup and bugfixing in the series "mm/kmemleak: Simplify kmemleak_cond_resched() & fix UAF". - T.J. Alumbaugh has contributed some MGLRU cleanup work in his series "mm: multi-gen LRU: improve". - Jiaqi Yan has provided some enhancements to our memory error statistics reporting, mainly by presenting the statistics on a per-node basis. See the series "Introduce per NUMA node memory error statistics". - Mel Gorman has a second and hopefully final shot at fixing a CPU-hog regression in compaction via his series "Fix excessive CPU usage during compaction". - Christoph Hellwig does some vmalloc maintenance work in the series "cleanup vfree and vunmap". - Christoph Hellwig has removed block_device_operations.rw_page() in ths series "remove ->rw_page". - We get some maple_tree improvements and cleanups in Liam Howlett's series "VMA tree type safety and remove __vma_adjust()". - Suren Baghdasaryan has done some work on the maintainability of our vm_flags handling in the series "introduce vm_flags modifier functions". - Some pagemap cleanup and generalization work in Mike Rapoport's series "mm, arch: add generic implementation of pfn_valid() for FLATMEM" and "fixups for generic implementation of pfn_valid()" - Baoquan He has done some work to make /proc/vmallocinfo and /proc/kcore better represent the real state of things in his series "mm/vmalloc.c: allow vread() to read out vm_map_ram areas". - Jason Gunthorpe rationalized the GUP system's interface to the rest of the kernel in the series "Simplify the external interface for GUP". - SeongJae Park wishes to migrate people from DAMON's debugfs interface over to its sysfs interface. To support this, we'll temporarily be printing warnings when people use the debugfs interface. See the series "mm/damon: deprecate DAMON debugfs interface". - Andrey Konovalov provided the accurately named "lib/stackdepot: fixes and clean-ups" series. - Huang Ying has provided a dramatic reduction in migration's TLB flush IPI rates with the series "migrate_pages(): batch TLB flushing". - Arnd Bergmann has some objtool fixups in "objtool warning fixes". -----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQTTMBEPP41GrTpTJgfdBJ7gKXxAjgUCY/PoPQAKCRDdBJ7gKXxA jlvpAPsFECUBBl20qSue2zCYWnHC7Yk4q9ytTkPB/MMDrFEN9wD/SNKEm2UoK6/K DmxHkn0LAitGgJRS/W9w81yrgig9tAQ= =MlGs -----END PGP SIGNATURE----- Merge tag 'mm-stable-2023-02-20-13-37' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Pull MM updates from Andrew Morton: - Daniel Verkamp has contributed a memfd series ("mm/memfd: add F_SEAL_EXEC") which permits the setting of the memfd execute bit at memfd creation time, with the option of sealing the state of the X bit. - Peter Xu adds a patch series ("mm/hugetlb: Make huge_pte_offset() thread-safe for pmd unshare") which addresses a rare race condition related to PMD unsharing. - Several folioification patch serieses from Matthew Wilcox, Vishal Moola, Sidhartha Kumar and Lorenzo Stoakes - Johannes Weiner has a series ("mm: push down lock_page_memcg()") which does perform some memcg maintenance and cleanup work. - SeongJae Park has added DAMOS filtering to DAMON, with the series "mm/damon/core: implement damos filter". These filters provide users with finer-grained control over DAMOS's actions. SeongJae has also done some DAMON cleanup work. - Kairui Song adds a series ("Clean up and fixes for swap"). - Vernon Yang contributed the series "Clean up and refinement for maple tree". - Yu Zhao has contributed the "mm: multi-gen LRU: memcg LRU" series. It adds to MGLRU an LRU of memcgs, to improve the scalability of global reclaim. - David Hildenbrand has added some userfaultfd cleanup work in the series "mm: uffd-wp + change_protection() cleanups". - Christoph Hellwig has removed the generic_writepages() library function in the series "remove generic_writepages". - Baolin Wang has performed some maintenance on the compaction code in his series "Some small improvements for compaction". - Sidhartha Kumar is doing some maintenance work on struct page in his series "Get rid of tail page fields". - David Hildenbrand contributed some cleanup, bugfixing and generalization of pte management and of pte debugging in his series "mm: support __HAVE_ARCH_PTE_SWP_EXCLUSIVE on all architectures with swap PTEs". - Mel Gorman and Neil Brown have removed the __GFP_ATOMIC allocation flag in the series "Discard __GFP_ATOMIC". - Sergey Senozhatsky has improved zsmalloc's memory utilization with his series "zsmalloc: make zspage chain size configurable". - Joey Gouly has added prctl() support for prohibiting the creation of writeable+executable mappings. The previous BPF-based approach had shortcomings. See "mm: In-kernel support for memory-deny-write-execute (MDWE)". - Waiman Long did some kmemleak cleanup and bugfixing in the series "mm/kmemleak: Simplify kmemleak_cond_resched() & fix UAF". - T.J. Alumbaugh has contributed some MGLRU cleanup work in his series "mm: multi-gen LRU: improve". - Jiaqi Yan has provided some enhancements to our memory error statistics reporting, mainly by presenting the statistics on a per-node basis. See the series "Introduce per NUMA node memory error statistics". - Mel Gorman has a second and hopefully final shot at fixing a CPU-hog regression in compaction via his series "Fix excessive CPU usage during compaction". - Christoph Hellwig does some vmalloc maintenance work in the series "cleanup vfree and vunmap". - Christoph Hellwig has removed block_device_operations.rw_page() in ths series "remove ->rw_page". - We get some maple_tree improvements and cleanups in Liam Howlett's series "VMA tree type safety and remove __vma_adjust()". - Suren Baghdasaryan has done some work on the maintainability of our vm_flags handling in the series "introduce vm_flags modifier functions". - Some pagemap cleanup and generalization work in Mike Rapoport's series "mm, arch: add generic implementation of pfn_valid() for FLATMEM" and "fixups for generic implementation of pfn_valid()" - Baoquan He has done some work to make /proc/vmallocinfo and /proc/kcore better represent the real state of things in his series "mm/vmalloc.c: allow vread() to read out vm_map_ram areas". - Jason Gunthorpe rationalized the GUP system's interface to the rest of the kernel in the series "Simplify the external interface for GUP". - SeongJae Park wishes to migrate people from DAMON's debugfs interface over to its sysfs interface. To support this, we'll temporarily be printing warnings when people use the debugfs interface. See the series "mm/damon: deprecate DAMON debugfs interface". - Andrey Konovalov provided the accurately named "lib/stackdepot: fixes and clean-ups" series. - Huang Ying has provided a dramatic reduction in migration's TLB flush IPI rates with the series "migrate_pages(): batch TLB flushing". - Arnd Bergmann has some objtool fixups in "objtool warning fixes". * tag 'mm-stable-2023-02-20-13-37' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (505 commits) include/linux/migrate.h: remove unneeded externs mm/memory_hotplug: cleanup return value handing in do_migrate_range() mm/uffd: fix comment in handling pte markers mm: change to return bool for isolate_movable_page() mm: hugetlb: change to return bool for isolate_hugetlb() mm: change to return bool for isolate_lru_page() mm: change to return bool for folio_isolate_lru() objtool: add UACCESS exceptions for __tsan_volatile_read/write kmsan: disable ftrace in kmsan core code kasan: mark addr_has_metadata __always_inline mm: memcontrol: rename memcg_kmem_enabled() sh: initialize max_mapnr m68k/nommu: add missing definition of ARCH_PFN_OFFSET mm: percpu: fix incorrect size in pcpu_obj_full_size() maple_tree: reduce stack usage with gcc-9 and earlier mm: page_alloc: call panic() when memoryless node allocation fails mm: multi-gen LRU: avoid futile retries migrate_pages: move THP/hugetlb migration support check to simplify code migrate_pages: batch flushing TLB migrate_pages: share more code between _unmap and _move ...
1168 lines
29 KiB
C
1168 lines
29 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* (C) 2001 Clemson University and The University of Chicago
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* Copyright 2018 Omnibond Systems, L.L.C.
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*
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* See COPYING in top-level directory.
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*/
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/*
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* Linux VFS inode operations.
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*/
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#include <linux/blkdev.h>
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#include <linux/fileattr.h>
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#include "protocol.h"
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#include "orangefs-kernel.h"
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#include "orangefs-bufmap.h"
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static int orangefs_writepage_locked(struct page *page,
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struct writeback_control *wbc)
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{
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struct inode *inode = page->mapping->host;
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struct orangefs_write_range *wr = NULL;
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struct iov_iter iter;
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struct bio_vec bv;
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size_t len, wlen;
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ssize_t ret;
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loff_t off;
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set_page_writeback(page);
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len = i_size_read(inode);
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if (PagePrivate(page)) {
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wr = (struct orangefs_write_range *)page_private(page);
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WARN_ON(wr->pos >= len);
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off = wr->pos;
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if (off + wr->len > len)
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wlen = len - off;
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else
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wlen = wr->len;
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} else {
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WARN_ON(1);
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off = page_offset(page);
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if (off + PAGE_SIZE > len)
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wlen = len - off;
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else
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wlen = PAGE_SIZE;
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}
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/* Should've been handled in orangefs_invalidate_folio. */
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WARN_ON(off == len || off + wlen > len);
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WARN_ON(wlen == 0);
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bvec_set_page(&bv, page, wlen, off % PAGE_SIZE);
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iov_iter_bvec(&iter, ITER_SOURCE, &bv, 1, wlen);
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ret = wait_for_direct_io(ORANGEFS_IO_WRITE, inode, &off, &iter, wlen,
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len, wr, NULL, NULL);
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if (ret < 0) {
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SetPageError(page);
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mapping_set_error(page->mapping, ret);
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} else {
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ret = 0;
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}
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kfree(detach_page_private(page));
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return ret;
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}
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static int orangefs_writepage(struct page *page, struct writeback_control *wbc)
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{
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int ret;
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ret = orangefs_writepage_locked(page, wbc);
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unlock_page(page);
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end_page_writeback(page);
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return ret;
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}
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struct orangefs_writepages {
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loff_t off;
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size_t len;
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kuid_t uid;
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kgid_t gid;
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int maxpages;
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int npages;
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struct page **pages;
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struct bio_vec *bv;
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};
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static int orangefs_writepages_work(struct orangefs_writepages *ow,
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struct writeback_control *wbc)
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{
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struct inode *inode = ow->pages[0]->mapping->host;
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struct orangefs_write_range *wrp, wr;
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struct iov_iter iter;
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ssize_t ret;
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size_t len;
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loff_t off;
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int i;
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len = i_size_read(inode);
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for (i = 0; i < ow->npages; i++) {
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set_page_writeback(ow->pages[i]);
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bvec_set_page(&ow->bv[i], ow->pages[i],
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min(page_offset(ow->pages[i]) + PAGE_SIZE,
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ow->off + ow->len) -
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max(ow->off, page_offset(ow->pages[i])),
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i == 0 ? ow->off - page_offset(ow->pages[i]) : 0);
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}
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iov_iter_bvec(&iter, ITER_SOURCE, ow->bv, ow->npages, ow->len);
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WARN_ON(ow->off >= len);
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if (ow->off + ow->len > len)
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ow->len = len - ow->off;
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off = ow->off;
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wr.uid = ow->uid;
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wr.gid = ow->gid;
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ret = wait_for_direct_io(ORANGEFS_IO_WRITE, inode, &off, &iter, ow->len,
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0, &wr, NULL, NULL);
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if (ret < 0) {
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for (i = 0; i < ow->npages; i++) {
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SetPageError(ow->pages[i]);
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mapping_set_error(ow->pages[i]->mapping, ret);
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if (PagePrivate(ow->pages[i])) {
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wrp = (struct orangefs_write_range *)
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page_private(ow->pages[i]);
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ClearPagePrivate(ow->pages[i]);
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put_page(ow->pages[i]);
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kfree(wrp);
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}
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end_page_writeback(ow->pages[i]);
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unlock_page(ow->pages[i]);
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}
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} else {
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ret = 0;
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for (i = 0; i < ow->npages; i++) {
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if (PagePrivate(ow->pages[i])) {
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wrp = (struct orangefs_write_range *)
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page_private(ow->pages[i]);
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ClearPagePrivate(ow->pages[i]);
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put_page(ow->pages[i]);
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kfree(wrp);
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}
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end_page_writeback(ow->pages[i]);
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unlock_page(ow->pages[i]);
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}
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}
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return ret;
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}
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static int orangefs_writepages_callback(struct folio *folio,
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struct writeback_control *wbc, void *data)
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{
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struct orangefs_writepages *ow = data;
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struct orangefs_write_range *wr = folio->private;
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int ret;
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if (!wr) {
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folio_unlock(folio);
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/* It's not private so there's nothing to write, right? */
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printk("writepages_callback not private!\n");
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BUG();
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return 0;
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}
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ret = -1;
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if (ow->npages == 0) {
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ow->off = wr->pos;
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ow->len = wr->len;
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ow->uid = wr->uid;
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ow->gid = wr->gid;
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ow->pages[ow->npages++] = &folio->page;
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ret = 0;
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goto done;
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}
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if (!uid_eq(ow->uid, wr->uid) || !gid_eq(ow->gid, wr->gid)) {
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orangefs_writepages_work(ow, wbc);
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ow->npages = 0;
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ret = -1;
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goto done;
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}
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if (ow->off + ow->len == wr->pos) {
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ow->len += wr->len;
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ow->pages[ow->npages++] = &folio->page;
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ret = 0;
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goto done;
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}
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done:
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if (ret == -1) {
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if (ow->npages) {
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orangefs_writepages_work(ow, wbc);
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ow->npages = 0;
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}
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ret = orangefs_writepage_locked(&folio->page, wbc);
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mapping_set_error(folio->mapping, ret);
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folio_unlock(folio);
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folio_end_writeback(folio);
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} else {
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if (ow->npages == ow->maxpages) {
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orangefs_writepages_work(ow, wbc);
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ow->npages = 0;
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}
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}
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return ret;
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}
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static int orangefs_writepages(struct address_space *mapping,
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struct writeback_control *wbc)
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{
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struct orangefs_writepages *ow;
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struct blk_plug plug;
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int ret;
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ow = kzalloc(sizeof(struct orangefs_writepages), GFP_KERNEL);
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if (!ow)
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return -ENOMEM;
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ow->maxpages = orangefs_bufmap_size_query()/PAGE_SIZE;
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ow->pages = kcalloc(ow->maxpages, sizeof(struct page *), GFP_KERNEL);
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if (!ow->pages) {
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kfree(ow);
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return -ENOMEM;
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}
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ow->bv = kcalloc(ow->maxpages, sizeof(struct bio_vec), GFP_KERNEL);
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if (!ow->bv) {
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kfree(ow->pages);
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kfree(ow);
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return -ENOMEM;
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}
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blk_start_plug(&plug);
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ret = write_cache_pages(mapping, wbc, orangefs_writepages_callback, ow);
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if (ow->npages)
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ret = orangefs_writepages_work(ow, wbc);
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blk_finish_plug(&plug);
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kfree(ow->pages);
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kfree(ow->bv);
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kfree(ow);
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return ret;
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}
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static int orangefs_launder_folio(struct folio *);
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static void orangefs_readahead(struct readahead_control *rac)
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{
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loff_t offset;
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struct iov_iter iter;
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struct inode *inode = rac->mapping->host;
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struct xarray *i_pages;
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struct page *page;
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loff_t new_start = readahead_pos(rac);
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int ret;
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size_t new_len = 0;
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loff_t bytes_remaining = inode->i_size - readahead_pos(rac);
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loff_t pages_remaining = bytes_remaining / PAGE_SIZE;
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if (pages_remaining >= 1024)
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new_len = 4194304;
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else if (pages_remaining > readahead_count(rac))
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new_len = bytes_remaining;
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if (new_len)
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readahead_expand(rac, new_start, new_len);
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offset = readahead_pos(rac);
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i_pages = &rac->mapping->i_pages;
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iov_iter_xarray(&iter, ITER_DEST, i_pages, offset, readahead_length(rac));
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/* read in the pages. */
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if ((ret = wait_for_direct_io(ORANGEFS_IO_READ, inode,
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&offset, &iter, readahead_length(rac),
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inode->i_size, NULL, NULL, rac->file)) < 0)
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gossip_debug(GOSSIP_FILE_DEBUG,
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"%s: wait_for_direct_io failed. \n", __func__);
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else
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ret = 0;
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/* clean up. */
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while ((page = readahead_page(rac))) {
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page_endio(page, false, ret);
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put_page(page);
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}
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}
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static int orangefs_read_folio(struct file *file, struct folio *folio)
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{
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struct inode *inode = folio->mapping->host;
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struct iov_iter iter;
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struct bio_vec bv;
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ssize_t ret;
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loff_t off; /* offset of this folio in the file */
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if (folio_test_dirty(folio))
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orangefs_launder_folio(folio);
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off = folio_pos(folio);
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bvec_set_folio(&bv, folio, folio_size(folio), 0);
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iov_iter_bvec(&iter, ITER_DEST, &bv, 1, folio_size(folio));
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ret = wait_for_direct_io(ORANGEFS_IO_READ, inode, &off, &iter,
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folio_size(folio), inode->i_size, NULL, NULL, file);
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/* this will only zero remaining unread portions of the folio data */
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iov_iter_zero(~0U, &iter);
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/* takes care of potential aliasing */
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flush_dcache_folio(folio);
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if (ret < 0) {
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folio_set_error(folio);
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} else {
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folio_mark_uptodate(folio);
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ret = 0;
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}
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/* unlock the folio after the ->read_folio() routine completes */
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folio_unlock(folio);
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return ret;
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}
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static int orangefs_write_begin(struct file *file,
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struct address_space *mapping, loff_t pos, unsigned len,
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struct page **pagep, void **fsdata)
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{
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struct orangefs_write_range *wr;
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struct folio *folio;
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struct page *page;
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pgoff_t index;
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int ret;
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index = pos >> PAGE_SHIFT;
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page = grab_cache_page_write_begin(mapping, index);
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if (!page)
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return -ENOMEM;
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*pagep = page;
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folio = page_folio(page);
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|
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if (folio_test_dirty(folio) && !folio_test_private(folio)) {
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/*
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* Should be impossible. If it happens, launder the page
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* since we don't know what's dirty. This will WARN in
|
|
* orangefs_writepage_locked.
|
|
*/
|
|
ret = orangefs_launder_folio(folio);
|
|
if (ret)
|
|
return ret;
|
|
}
|
|
if (folio_test_private(folio)) {
|
|
struct orangefs_write_range *wr;
|
|
wr = folio_get_private(folio);
|
|
if (wr->pos + wr->len == pos &&
|
|
uid_eq(wr->uid, current_fsuid()) &&
|
|
gid_eq(wr->gid, current_fsgid())) {
|
|
wr->len += len;
|
|
goto okay;
|
|
} else {
|
|
ret = orangefs_launder_folio(folio);
|
|
if (ret)
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
wr = kmalloc(sizeof *wr, GFP_KERNEL);
|
|
if (!wr)
|
|
return -ENOMEM;
|
|
|
|
wr->pos = pos;
|
|
wr->len = len;
|
|
wr->uid = current_fsuid();
|
|
wr->gid = current_fsgid();
|
|
folio_attach_private(folio, wr);
|
|
okay:
|
|
return 0;
|
|
}
|
|
|
|
static int orangefs_write_end(struct file *file, struct address_space *mapping,
|
|
loff_t pos, unsigned len, unsigned copied, struct page *page, void *fsdata)
|
|
{
|
|
struct inode *inode = page->mapping->host;
|
|
loff_t last_pos = pos + copied;
|
|
|
|
/*
|
|
* No need to use i_size_read() here, the i_size
|
|
* cannot change under us because we hold the i_mutex.
|
|
*/
|
|
if (last_pos > inode->i_size)
|
|
i_size_write(inode, last_pos);
|
|
|
|
/* zero the stale part of the page if we did a short copy */
|
|
if (!PageUptodate(page)) {
|
|
unsigned from = pos & (PAGE_SIZE - 1);
|
|
if (copied < len) {
|
|
zero_user(page, from + copied, len - copied);
|
|
}
|
|
/* Set fully written pages uptodate. */
|
|
if (pos == page_offset(page) &&
|
|
(len == PAGE_SIZE || pos + len == inode->i_size)) {
|
|
zero_user_segment(page, from + copied, PAGE_SIZE);
|
|
SetPageUptodate(page);
|
|
}
|
|
}
|
|
|
|
set_page_dirty(page);
|
|
unlock_page(page);
|
|
put_page(page);
|
|
|
|
mark_inode_dirty_sync(file_inode(file));
|
|
return copied;
|
|
}
|
|
|
|
static void orangefs_invalidate_folio(struct folio *folio,
|
|
size_t offset, size_t length)
|
|
{
|
|
struct orangefs_write_range *wr = folio_get_private(folio);
|
|
|
|
if (offset == 0 && length == PAGE_SIZE) {
|
|
kfree(folio_detach_private(folio));
|
|
return;
|
|
/* write range entirely within invalidate range (or equal) */
|
|
} else if (folio_pos(folio) + offset <= wr->pos &&
|
|
wr->pos + wr->len <= folio_pos(folio) + offset + length) {
|
|
kfree(folio_detach_private(folio));
|
|
/* XXX is this right? only caller in fs */
|
|
folio_cancel_dirty(folio);
|
|
return;
|
|
/* invalidate range chops off end of write range */
|
|
} else if (wr->pos < folio_pos(folio) + offset &&
|
|
wr->pos + wr->len <= folio_pos(folio) + offset + length &&
|
|
folio_pos(folio) + offset < wr->pos + wr->len) {
|
|
size_t x;
|
|
x = wr->pos + wr->len - (folio_pos(folio) + offset);
|
|
WARN_ON(x > wr->len);
|
|
wr->len -= x;
|
|
wr->uid = current_fsuid();
|
|
wr->gid = current_fsgid();
|
|
/* invalidate range chops off beginning of write range */
|
|
} else if (folio_pos(folio) + offset <= wr->pos &&
|
|
folio_pos(folio) + offset + length < wr->pos + wr->len &&
|
|
wr->pos < folio_pos(folio) + offset + length) {
|
|
size_t x;
|
|
x = folio_pos(folio) + offset + length - wr->pos;
|
|
WARN_ON(x > wr->len);
|
|
wr->pos += x;
|
|
wr->len -= x;
|
|
wr->uid = current_fsuid();
|
|
wr->gid = current_fsgid();
|
|
/* invalidate range entirely within write range (punch hole) */
|
|
} else if (wr->pos < folio_pos(folio) + offset &&
|
|
folio_pos(folio) + offset + length < wr->pos + wr->len) {
|
|
/* XXX what do we do here... should not WARN_ON */
|
|
WARN_ON(1);
|
|
/* punch hole */
|
|
/*
|
|
* should we just ignore this and write it out anyway?
|
|
* it hardly makes sense
|
|
*/
|
|
return;
|
|
/* non-overlapping ranges */
|
|
} else {
|
|
/* WARN if they do overlap */
|
|
if (!((folio_pos(folio) + offset + length <= wr->pos) ^
|
|
(wr->pos + wr->len <= folio_pos(folio) + offset))) {
|
|
WARN_ON(1);
|
|
printk("invalidate range offset %llu length %zu\n",
|
|
folio_pos(folio) + offset, length);
|
|
printk("write range offset %llu length %zu\n",
|
|
wr->pos, wr->len);
|
|
}
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* Above there are returns where wr is freed or where we WARN.
|
|
* Thus the following runs if wr was modified above.
|
|
*/
|
|
|
|
orangefs_launder_folio(folio);
|
|
}
|
|
|
|
static bool orangefs_release_folio(struct folio *folio, gfp_t foo)
|
|
{
|
|
return !folio_test_private(folio);
|
|
}
|
|
|
|
static void orangefs_free_folio(struct folio *folio)
|
|
{
|
|
kfree(folio_detach_private(folio));
|
|
}
|
|
|
|
static int orangefs_launder_folio(struct folio *folio)
|
|
{
|
|
int r = 0;
|
|
struct writeback_control wbc = {
|
|
.sync_mode = WB_SYNC_ALL,
|
|
.nr_to_write = 0,
|
|
};
|
|
folio_wait_writeback(folio);
|
|
if (folio_clear_dirty_for_io(folio)) {
|
|
r = orangefs_writepage_locked(&folio->page, &wbc);
|
|
folio_end_writeback(folio);
|
|
}
|
|
return r;
|
|
}
|
|
|
|
static ssize_t orangefs_direct_IO(struct kiocb *iocb,
|
|
struct iov_iter *iter)
|
|
{
|
|
/*
|
|
* Comment from original do_readv_writev:
|
|
* Common entry point for read/write/readv/writev
|
|
* This function will dispatch it to either the direct I/O
|
|
* or buffered I/O path depending on the mount options and/or
|
|
* augmented/extended metadata attached to the file.
|
|
* Note: File extended attributes override any mount options.
|
|
*/
|
|
struct file *file = iocb->ki_filp;
|
|
loff_t pos = iocb->ki_pos;
|
|
enum ORANGEFS_io_type type = iov_iter_rw(iter) == WRITE ?
|
|
ORANGEFS_IO_WRITE : ORANGEFS_IO_READ;
|
|
loff_t *offset = &pos;
|
|
struct inode *inode = file->f_mapping->host;
|
|
struct orangefs_inode_s *orangefs_inode = ORANGEFS_I(inode);
|
|
struct orangefs_khandle *handle = &orangefs_inode->refn.khandle;
|
|
size_t count = iov_iter_count(iter);
|
|
ssize_t total_count = 0;
|
|
ssize_t ret = -EINVAL;
|
|
|
|
gossip_debug(GOSSIP_FILE_DEBUG,
|
|
"%s-BEGIN(%pU): count(%d) after estimate_max_iovecs.\n",
|
|
__func__,
|
|
handle,
|
|
(int)count);
|
|
|
|
if (type == ORANGEFS_IO_WRITE) {
|
|
gossip_debug(GOSSIP_FILE_DEBUG,
|
|
"%s(%pU): proceeding with offset : %llu, "
|
|
"size %d\n",
|
|
__func__,
|
|
handle,
|
|
llu(*offset),
|
|
(int)count);
|
|
}
|
|
|
|
if (count == 0) {
|
|
ret = 0;
|
|
goto out;
|
|
}
|
|
|
|
while (iov_iter_count(iter)) {
|
|
size_t each_count = iov_iter_count(iter);
|
|
size_t amt_complete;
|
|
|
|
/* how much to transfer in this loop iteration */
|
|
if (each_count > orangefs_bufmap_size_query())
|
|
each_count = orangefs_bufmap_size_query();
|
|
|
|
gossip_debug(GOSSIP_FILE_DEBUG,
|
|
"%s(%pU): size of each_count(%d)\n",
|
|
__func__,
|
|
handle,
|
|
(int)each_count);
|
|
gossip_debug(GOSSIP_FILE_DEBUG,
|
|
"%s(%pU): BEFORE wait_for_io: offset is %d\n",
|
|
__func__,
|
|
handle,
|
|
(int)*offset);
|
|
|
|
ret = wait_for_direct_io(type, inode, offset, iter,
|
|
each_count, 0, NULL, NULL, file);
|
|
gossip_debug(GOSSIP_FILE_DEBUG,
|
|
"%s(%pU): return from wait_for_io:%d\n",
|
|
__func__,
|
|
handle,
|
|
(int)ret);
|
|
|
|
if (ret < 0)
|
|
goto out;
|
|
|
|
*offset += ret;
|
|
total_count += ret;
|
|
amt_complete = ret;
|
|
|
|
gossip_debug(GOSSIP_FILE_DEBUG,
|
|
"%s(%pU): AFTER wait_for_io: offset is %d\n",
|
|
__func__,
|
|
handle,
|
|
(int)*offset);
|
|
|
|
/*
|
|
* if we got a short I/O operations,
|
|
* fall out and return what we got so far
|
|
*/
|
|
if (amt_complete < each_count)
|
|
break;
|
|
} /*end while */
|
|
|
|
out:
|
|
if (total_count > 0)
|
|
ret = total_count;
|
|
if (ret > 0) {
|
|
if (type == ORANGEFS_IO_READ) {
|
|
file_accessed(file);
|
|
} else {
|
|
file_update_time(file);
|
|
if (*offset > i_size_read(inode))
|
|
i_size_write(inode, *offset);
|
|
}
|
|
}
|
|
|
|
gossip_debug(GOSSIP_FILE_DEBUG,
|
|
"%s(%pU): Value(%d) returned.\n",
|
|
__func__,
|
|
handle,
|
|
(int)ret);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/** ORANGEFS2 implementation of address space operations */
|
|
static const struct address_space_operations orangefs_address_operations = {
|
|
.writepage = orangefs_writepage,
|
|
.readahead = orangefs_readahead,
|
|
.read_folio = orangefs_read_folio,
|
|
.writepages = orangefs_writepages,
|
|
.dirty_folio = filemap_dirty_folio,
|
|
.write_begin = orangefs_write_begin,
|
|
.write_end = orangefs_write_end,
|
|
.invalidate_folio = orangefs_invalidate_folio,
|
|
.release_folio = orangefs_release_folio,
|
|
.free_folio = orangefs_free_folio,
|
|
.launder_folio = orangefs_launder_folio,
|
|
.direct_IO = orangefs_direct_IO,
|
|
};
|
|
|
|
vm_fault_t orangefs_page_mkwrite(struct vm_fault *vmf)
|
|
{
|
|
struct folio *folio = page_folio(vmf->page);
|
|
struct inode *inode = file_inode(vmf->vma->vm_file);
|
|
struct orangefs_inode_s *orangefs_inode = ORANGEFS_I(inode);
|
|
unsigned long *bitlock = &orangefs_inode->bitlock;
|
|
vm_fault_t ret;
|
|
struct orangefs_write_range *wr;
|
|
|
|
sb_start_pagefault(inode->i_sb);
|
|
|
|
if (wait_on_bit(bitlock, 1, TASK_KILLABLE)) {
|
|
ret = VM_FAULT_RETRY;
|
|
goto out;
|
|
}
|
|
|
|
folio_lock(folio);
|
|
if (folio_test_dirty(folio) && !folio_test_private(folio)) {
|
|
/*
|
|
* Should be impossible. If it happens, launder the folio
|
|
* since we don't know what's dirty. This will WARN in
|
|
* orangefs_writepage_locked.
|
|
*/
|
|
if (orangefs_launder_folio(folio)) {
|
|
ret = VM_FAULT_LOCKED|VM_FAULT_RETRY;
|
|
goto out;
|
|
}
|
|
}
|
|
if (folio_test_private(folio)) {
|
|
wr = folio_get_private(folio);
|
|
if (uid_eq(wr->uid, current_fsuid()) &&
|
|
gid_eq(wr->gid, current_fsgid())) {
|
|
wr->pos = page_offset(vmf->page);
|
|
wr->len = PAGE_SIZE;
|
|
goto okay;
|
|
} else {
|
|
if (orangefs_launder_folio(folio)) {
|
|
ret = VM_FAULT_LOCKED|VM_FAULT_RETRY;
|
|
goto out;
|
|
}
|
|
}
|
|
}
|
|
wr = kmalloc(sizeof *wr, GFP_KERNEL);
|
|
if (!wr) {
|
|
ret = VM_FAULT_LOCKED|VM_FAULT_RETRY;
|
|
goto out;
|
|
}
|
|
wr->pos = page_offset(vmf->page);
|
|
wr->len = PAGE_SIZE;
|
|
wr->uid = current_fsuid();
|
|
wr->gid = current_fsgid();
|
|
folio_attach_private(folio, wr);
|
|
okay:
|
|
|
|
file_update_time(vmf->vma->vm_file);
|
|
if (folio->mapping != inode->i_mapping) {
|
|
folio_unlock(folio);
|
|
ret = VM_FAULT_LOCKED|VM_FAULT_NOPAGE;
|
|
goto out;
|
|
}
|
|
|
|
/*
|
|
* We mark the folio dirty already here so that when freeze is in
|
|
* progress, we are guaranteed that writeback during freezing will
|
|
* see the dirty folio and writeprotect it again.
|
|
*/
|
|
folio_mark_dirty(folio);
|
|
folio_wait_stable(folio);
|
|
ret = VM_FAULT_LOCKED;
|
|
out:
|
|
sb_end_pagefault(inode->i_sb);
|
|
return ret;
|
|
}
|
|
|
|
static int orangefs_setattr_size(struct inode *inode, struct iattr *iattr)
|
|
{
|
|
struct orangefs_inode_s *orangefs_inode = ORANGEFS_I(inode);
|
|
struct orangefs_kernel_op_s *new_op;
|
|
loff_t orig_size;
|
|
int ret = -EINVAL;
|
|
|
|
gossip_debug(GOSSIP_INODE_DEBUG,
|
|
"%s: %pU: Handle is %pU | fs_id %d | size is %llu\n",
|
|
__func__,
|
|
get_khandle_from_ino(inode),
|
|
&orangefs_inode->refn.khandle,
|
|
orangefs_inode->refn.fs_id,
|
|
iattr->ia_size);
|
|
|
|
/* Ensure that we have a up to date size, so we know if it changed. */
|
|
ret = orangefs_inode_getattr(inode, ORANGEFS_GETATTR_SIZE);
|
|
if (ret == -ESTALE)
|
|
ret = -EIO;
|
|
if (ret) {
|
|
gossip_err("%s: orangefs_inode_getattr failed, ret:%d:.\n",
|
|
__func__, ret);
|
|
return ret;
|
|
}
|
|
orig_size = i_size_read(inode);
|
|
|
|
/* This is truncate_setsize in a different order. */
|
|
truncate_pagecache(inode, iattr->ia_size);
|
|
i_size_write(inode, iattr->ia_size);
|
|
if (iattr->ia_size > orig_size)
|
|
pagecache_isize_extended(inode, orig_size, iattr->ia_size);
|
|
|
|
new_op = op_alloc(ORANGEFS_VFS_OP_TRUNCATE);
|
|
if (!new_op)
|
|
return -ENOMEM;
|
|
|
|
new_op->upcall.req.truncate.refn = orangefs_inode->refn;
|
|
new_op->upcall.req.truncate.size = (__s64) iattr->ia_size;
|
|
|
|
ret = service_operation(new_op,
|
|
__func__,
|
|
get_interruptible_flag(inode));
|
|
|
|
/*
|
|
* the truncate has no downcall members to retrieve, but
|
|
* the status value tells us if it went through ok or not
|
|
*/
|
|
gossip_debug(GOSSIP_INODE_DEBUG, "%s: ret:%d:\n", __func__, ret);
|
|
|
|
op_release(new_op);
|
|
|
|
if (ret != 0)
|
|
return ret;
|
|
|
|
if (orig_size != i_size_read(inode))
|
|
iattr->ia_valid |= ATTR_CTIME | ATTR_MTIME;
|
|
|
|
return ret;
|
|
}
|
|
|
|
int __orangefs_setattr(struct inode *inode, struct iattr *iattr)
|
|
{
|
|
int ret;
|
|
|
|
if (iattr->ia_valid & ATTR_MODE) {
|
|
if (iattr->ia_mode & (S_ISVTX)) {
|
|
if (is_root_handle(inode)) {
|
|
/*
|
|
* allow sticky bit to be set on root (since
|
|
* it shows up that way by default anyhow),
|
|
* but don't show it to the server
|
|
*/
|
|
iattr->ia_mode -= S_ISVTX;
|
|
} else {
|
|
gossip_debug(GOSSIP_UTILS_DEBUG,
|
|
"User attempted to set sticky bit on non-root directory; returning EINVAL.\n");
|
|
ret = -EINVAL;
|
|
goto out;
|
|
}
|
|
}
|
|
if (iattr->ia_mode & (S_ISUID)) {
|
|
gossip_debug(GOSSIP_UTILS_DEBUG,
|
|
"Attempting to set setuid bit (not supported); returning EINVAL.\n");
|
|
ret = -EINVAL;
|
|
goto out;
|
|
}
|
|
}
|
|
|
|
if (iattr->ia_valid & ATTR_SIZE) {
|
|
ret = orangefs_setattr_size(inode, iattr);
|
|
if (ret)
|
|
goto out;
|
|
}
|
|
|
|
again:
|
|
spin_lock(&inode->i_lock);
|
|
if (ORANGEFS_I(inode)->attr_valid) {
|
|
if (uid_eq(ORANGEFS_I(inode)->attr_uid, current_fsuid()) &&
|
|
gid_eq(ORANGEFS_I(inode)->attr_gid, current_fsgid())) {
|
|
ORANGEFS_I(inode)->attr_valid = iattr->ia_valid;
|
|
} else {
|
|
spin_unlock(&inode->i_lock);
|
|
write_inode_now(inode, 1);
|
|
goto again;
|
|
}
|
|
} else {
|
|
ORANGEFS_I(inode)->attr_valid = iattr->ia_valid;
|
|
ORANGEFS_I(inode)->attr_uid = current_fsuid();
|
|
ORANGEFS_I(inode)->attr_gid = current_fsgid();
|
|
}
|
|
setattr_copy(&nop_mnt_idmap, inode, iattr);
|
|
spin_unlock(&inode->i_lock);
|
|
mark_inode_dirty(inode);
|
|
|
|
ret = 0;
|
|
out:
|
|
return ret;
|
|
}
|
|
|
|
int __orangefs_setattr_mode(struct dentry *dentry, struct iattr *iattr)
|
|
{
|
|
int ret;
|
|
struct inode *inode = d_inode(dentry);
|
|
|
|
ret = __orangefs_setattr(inode, iattr);
|
|
/* change mode on a file that has ACLs */
|
|
if (!ret && (iattr->ia_valid & ATTR_MODE))
|
|
ret = posix_acl_chmod(&nop_mnt_idmap, dentry, inode->i_mode);
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* Change attributes of an object referenced by dentry.
|
|
*/
|
|
int orangefs_setattr(struct mnt_idmap *idmap, struct dentry *dentry,
|
|
struct iattr *iattr)
|
|
{
|
|
int ret;
|
|
gossip_debug(GOSSIP_INODE_DEBUG, "__orangefs_setattr: called on %pd\n",
|
|
dentry);
|
|
ret = setattr_prepare(&nop_mnt_idmap, dentry, iattr);
|
|
if (ret)
|
|
goto out;
|
|
ret = __orangefs_setattr_mode(dentry, iattr);
|
|
sync_inode_metadata(d_inode(dentry), 1);
|
|
out:
|
|
gossip_debug(GOSSIP_INODE_DEBUG, "orangefs_setattr: returning %d\n",
|
|
ret);
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* Obtain attributes of an object given a dentry
|
|
*/
|
|
int orangefs_getattr(struct mnt_idmap *idmap, const struct path *path,
|
|
struct kstat *stat, u32 request_mask, unsigned int flags)
|
|
{
|
|
int ret;
|
|
struct inode *inode = path->dentry->d_inode;
|
|
|
|
gossip_debug(GOSSIP_INODE_DEBUG,
|
|
"orangefs_getattr: called on %pd mask %u\n",
|
|
path->dentry, request_mask);
|
|
|
|
ret = orangefs_inode_getattr(inode,
|
|
request_mask & STATX_SIZE ? ORANGEFS_GETATTR_SIZE : 0);
|
|
if (ret == 0) {
|
|
generic_fillattr(&nop_mnt_idmap, inode, stat);
|
|
|
|
/* override block size reported to stat */
|
|
if (!(request_mask & STATX_SIZE))
|
|
stat->result_mask &= ~STATX_SIZE;
|
|
|
|
generic_fill_statx_attr(inode, stat);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
int orangefs_permission(struct mnt_idmap *idmap,
|
|
struct inode *inode, int mask)
|
|
{
|
|
int ret;
|
|
|
|
if (mask & MAY_NOT_BLOCK)
|
|
return -ECHILD;
|
|
|
|
gossip_debug(GOSSIP_INODE_DEBUG, "%s: refreshing\n", __func__);
|
|
|
|
/* Make sure the permission (and other common attrs) are up to date. */
|
|
ret = orangefs_inode_getattr(inode, 0);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
return generic_permission(&nop_mnt_idmap, inode, mask);
|
|
}
|
|
|
|
int orangefs_update_time(struct inode *inode, struct timespec64 *time, int flags)
|
|
{
|
|
struct iattr iattr;
|
|
gossip_debug(GOSSIP_INODE_DEBUG, "orangefs_update_time: %pU\n",
|
|
get_khandle_from_ino(inode));
|
|
generic_update_time(inode, time, flags);
|
|
memset(&iattr, 0, sizeof iattr);
|
|
if (flags & S_ATIME)
|
|
iattr.ia_valid |= ATTR_ATIME;
|
|
if (flags & S_CTIME)
|
|
iattr.ia_valid |= ATTR_CTIME;
|
|
if (flags & S_MTIME)
|
|
iattr.ia_valid |= ATTR_MTIME;
|
|
return __orangefs_setattr(inode, &iattr);
|
|
}
|
|
|
|
static int orangefs_fileattr_get(struct dentry *dentry, struct fileattr *fa)
|
|
{
|
|
u64 val = 0;
|
|
int ret;
|
|
|
|
gossip_debug(GOSSIP_FILE_DEBUG, "%s: called on %pd\n", __func__,
|
|
dentry);
|
|
|
|
ret = orangefs_inode_getxattr(d_inode(dentry),
|
|
"user.pvfs2.meta_hint",
|
|
&val, sizeof(val));
|
|
if (ret < 0 && ret != -ENODATA)
|
|
return ret;
|
|
|
|
gossip_debug(GOSSIP_FILE_DEBUG, "%s: flags=%u\n", __func__, (u32) val);
|
|
|
|
fileattr_fill_flags(fa, val);
|
|
return 0;
|
|
}
|
|
|
|
static int orangefs_fileattr_set(struct mnt_idmap *idmap,
|
|
struct dentry *dentry, struct fileattr *fa)
|
|
{
|
|
u64 val = 0;
|
|
|
|
gossip_debug(GOSSIP_FILE_DEBUG, "%s: called on %pd\n", __func__,
|
|
dentry);
|
|
/*
|
|
* ORANGEFS_MIRROR_FL is set internally when the mirroring mode is
|
|
* turned on for a file. The user is not allowed to turn on this bit,
|
|
* but the bit is present if the user first gets the flags and then
|
|
* updates the flags with some new settings. So, we ignore it in the
|
|
* following edit. bligon.
|
|
*/
|
|
if (fileattr_has_fsx(fa) ||
|
|
(fa->flags & ~(FS_IMMUTABLE_FL | FS_APPEND_FL | FS_NOATIME_FL | ORANGEFS_MIRROR_FL))) {
|
|
gossip_err("%s: only supports setting one of FS_IMMUTABLE_FL|FS_APPEND_FL|FS_NOATIME_FL\n",
|
|
__func__);
|
|
return -EOPNOTSUPP;
|
|
}
|
|
val = fa->flags;
|
|
gossip_debug(GOSSIP_FILE_DEBUG, "%s: flags=%u\n", __func__, (u32) val);
|
|
return orangefs_inode_setxattr(d_inode(dentry),
|
|
"user.pvfs2.meta_hint",
|
|
&val, sizeof(val), 0);
|
|
}
|
|
|
|
/* ORANGEFS2 implementation of VFS inode operations for files */
|
|
static const struct inode_operations orangefs_file_inode_operations = {
|
|
.get_inode_acl = orangefs_get_acl,
|
|
.set_acl = orangefs_set_acl,
|
|
.setattr = orangefs_setattr,
|
|
.getattr = orangefs_getattr,
|
|
.listxattr = orangefs_listxattr,
|
|
.permission = orangefs_permission,
|
|
.update_time = orangefs_update_time,
|
|
.fileattr_get = orangefs_fileattr_get,
|
|
.fileattr_set = orangefs_fileattr_set,
|
|
};
|
|
|
|
static int orangefs_init_iops(struct inode *inode)
|
|
{
|
|
inode->i_mapping->a_ops = &orangefs_address_operations;
|
|
|
|
switch (inode->i_mode & S_IFMT) {
|
|
case S_IFREG:
|
|
inode->i_op = &orangefs_file_inode_operations;
|
|
inode->i_fop = &orangefs_file_operations;
|
|
break;
|
|
case S_IFLNK:
|
|
inode->i_op = &orangefs_symlink_inode_operations;
|
|
break;
|
|
case S_IFDIR:
|
|
inode->i_op = &orangefs_dir_inode_operations;
|
|
inode->i_fop = &orangefs_dir_operations;
|
|
break;
|
|
default:
|
|
gossip_debug(GOSSIP_INODE_DEBUG,
|
|
"%s: unsupported mode\n",
|
|
__func__);
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Given an ORANGEFS object identifier (fsid, handle), convert it into
|
|
* a ino_t type that will be used as a hash-index from where the handle will
|
|
* be searched for in the VFS hash table of inodes.
|
|
*/
|
|
static inline ino_t orangefs_handle_hash(struct orangefs_object_kref *ref)
|
|
{
|
|
if (!ref)
|
|
return 0;
|
|
return orangefs_khandle_to_ino(&(ref->khandle));
|
|
}
|
|
|
|
/*
|
|
* Called to set up an inode from iget5_locked.
|
|
*/
|
|
static int orangefs_set_inode(struct inode *inode, void *data)
|
|
{
|
|
struct orangefs_object_kref *ref = (struct orangefs_object_kref *) data;
|
|
ORANGEFS_I(inode)->refn.fs_id = ref->fs_id;
|
|
ORANGEFS_I(inode)->refn.khandle = ref->khandle;
|
|
ORANGEFS_I(inode)->attr_valid = 0;
|
|
hash_init(ORANGEFS_I(inode)->xattr_cache);
|
|
ORANGEFS_I(inode)->mapping_time = jiffies - 1;
|
|
ORANGEFS_I(inode)->bitlock = 0;
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Called to determine if handles match.
|
|
*/
|
|
static int orangefs_test_inode(struct inode *inode, void *data)
|
|
{
|
|
struct orangefs_object_kref *ref = (struct orangefs_object_kref *) data;
|
|
struct orangefs_inode_s *orangefs_inode = NULL;
|
|
|
|
orangefs_inode = ORANGEFS_I(inode);
|
|
/* test handles and fs_ids... */
|
|
return (!ORANGEFS_khandle_cmp(&(orangefs_inode->refn.khandle),
|
|
&(ref->khandle)) &&
|
|
orangefs_inode->refn.fs_id == ref->fs_id);
|
|
}
|
|
|
|
/*
|
|
* Front-end to lookup the inode-cache maintained by the VFS using the ORANGEFS
|
|
* file handle.
|
|
*
|
|
* @sb: the file system super block instance.
|
|
* @ref: The ORANGEFS object for which we are trying to locate an inode.
|
|
*/
|
|
struct inode *orangefs_iget(struct super_block *sb,
|
|
struct orangefs_object_kref *ref)
|
|
{
|
|
struct inode *inode = NULL;
|
|
unsigned long hash;
|
|
int error;
|
|
|
|
hash = orangefs_handle_hash(ref);
|
|
inode = iget5_locked(sb,
|
|
hash,
|
|
orangefs_test_inode,
|
|
orangefs_set_inode,
|
|
ref);
|
|
|
|
if (!inode)
|
|
return ERR_PTR(-ENOMEM);
|
|
|
|
if (!(inode->i_state & I_NEW))
|
|
return inode;
|
|
|
|
error = orangefs_inode_getattr(inode, ORANGEFS_GETATTR_NEW);
|
|
if (error) {
|
|
iget_failed(inode);
|
|
return ERR_PTR(error);
|
|
}
|
|
|
|
inode->i_ino = hash; /* needed for stat etc */
|
|
orangefs_init_iops(inode);
|
|
unlock_new_inode(inode);
|
|
|
|
gossip_debug(GOSSIP_INODE_DEBUG,
|
|
"iget handle %pU, fsid %d hash %ld i_ino %lu\n",
|
|
&ref->khandle,
|
|
ref->fs_id,
|
|
hash,
|
|
inode->i_ino);
|
|
|
|
return inode;
|
|
}
|
|
|
|
/*
|
|
* Allocate an inode for a newly created file and insert it into the inode hash.
|
|
*/
|
|
struct inode *orangefs_new_inode(struct super_block *sb, struct inode *dir,
|
|
umode_t mode, dev_t dev, struct orangefs_object_kref *ref)
|
|
{
|
|
struct posix_acl *acl = NULL, *default_acl = NULL;
|
|
unsigned long hash = orangefs_handle_hash(ref);
|
|
struct inode *inode;
|
|
int error;
|
|
|
|
gossip_debug(GOSSIP_INODE_DEBUG,
|
|
"%s:(sb is %p | MAJOR(dev)=%u | MINOR(dev)=%u mode=%o)\n",
|
|
__func__,
|
|
sb,
|
|
MAJOR(dev),
|
|
MINOR(dev),
|
|
mode);
|
|
|
|
inode = new_inode(sb);
|
|
if (!inode)
|
|
return ERR_PTR(-ENOMEM);
|
|
|
|
error = posix_acl_create(dir, &mode, &default_acl, &acl);
|
|
if (error)
|
|
goto out_iput;
|
|
|
|
orangefs_set_inode(inode, ref);
|
|
inode->i_ino = hash; /* needed for stat etc */
|
|
|
|
error = orangefs_inode_getattr(inode, ORANGEFS_GETATTR_NEW);
|
|
if (error)
|
|
goto out_iput;
|
|
|
|
orangefs_init_iops(inode);
|
|
inode->i_rdev = dev;
|
|
|
|
if (default_acl) {
|
|
error = __orangefs_set_acl(inode, default_acl,
|
|
ACL_TYPE_DEFAULT);
|
|
if (error)
|
|
goto out_iput;
|
|
}
|
|
|
|
if (acl) {
|
|
error = __orangefs_set_acl(inode, acl, ACL_TYPE_ACCESS);
|
|
if (error)
|
|
goto out_iput;
|
|
}
|
|
|
|
error = insert_inode_locked4(inode, hash, orangefs_test_inode, ref);
|
|
if (error < 0)
|
|
goto out_iput;
|
|
|
|
gossip_debug(GOSSIP_INODE_DEBUG,
|
|
"Initializing ACL's for inode %pU\n",
|
|
get_khandle_from_ino(inode));
|
|
if (mode != inode->i_mode) {
|
|
struct iattr iattr = {
|
|
.ia_mode = mode,
|
|
.ia_valid = ATTR_MODE,
|
|
};
|
|
inode->i_mode = mode;
|
|
__orangefs_setattr(inode, &iattr);
|
|
__posix_acl_chmod(&acl, GFP_KERNEL, inode->i_mode);
|
|
}
|
|
posix_acl_release(acl);
|
|
posix_acl_release(default_acl);
|
|
return inode;
|
|
|
|
out_iput:
|
|
iput(inode);
|
|
posix_acl_release(acl);
|
|
posix_acl_release(default_acl);
|
|
return ERR_PTR(error);
|
|
}
|