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https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
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0a234c6dcb
Convert superblock shrinker to use the new count/scan API, and propagate the API changes through to the filesystem callouts. The filesystem callouts already use a count/scan API, so it's just changing counters to longs to match the VM API. This requires the dentry and inode shrinker callouts to be converted to the count/scan API. This is mainly a mechanical change. [glommer@openvz.org: use mult_frac for fractional proportions, build fixes] Signed-off-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Glauber Costa <glommer@openvz.org> Acked-by: Mel Gorman <mgorman@suse.de> Cc: "Theodore Ts'o" <tytso@mit.edu> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Cc: Arve Hjønnevåg <arve@android.com> Cc: Carlos Maiolino <cmaiolino@redhat.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Chuck Lever <chuck.lever@oracle.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: David Rientjes <rientjes@google.com> Cc: Gleb Natapov <gleb@redhat.com> Cc: Greg Thelen <gthelen@google.com> Cc: J. Bruce Fields <bfields@redhat.com> Cc: Jan Kara <jack@suse.cz> Cc: Jerome Glisse <jglisse@redhat.com> Cc: John Stultz <john.stultz@linaro.org> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Kent Overstreet <koverstreet@google.com> Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Marcelo Tosatti <mtosatti@redhat.com> Cc: Mel Gorman <mgorman@suse.de> Cc: Steven Whitehouse <swhiteho@redhat.com> Cc: Thomas Hellstrom <thellstrom@vmware.com> Cc: Trond Myklebust <Trond.Myklebust@netapp.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
102 lines
3 KiB
C
102 lines
3 KiB
C
/*
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* Copyright (c) 2000-2006 Silicon Graphics, Inc.
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* All Rights Reserved.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it would be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef XFS_SYNC_H
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#define XFS_SYNC_H 1
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struct xfs_mount;
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struct xfs_perag;
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struct xfs_eofblocks {
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__u32 eof_flags;
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kuid_t eof_uid;
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kgid_t eof_gid;
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prid_t eof_prid;
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__u64 eof_min_file_size;
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};
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#define SYNC_WAIT 0x0001 /* wait for i/o to complete */
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#define SYNC_TRYLOCK 0x0002 /* only try to lock inodes */
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/*
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* Flags for xfs_iget()
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*/
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#define XFS_IGET_CREATE 0x1
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#define XFS_IGET_UNTRUSTED 0x2
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#define XFS_IGET_DONTCACHE 0x4
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int xfs_iget(struct xfs_mount *mp, struct xfs_trans *tp, xfs_ino_t ino,
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uint flags, uint lock_flags, xfs_inode_t **ipp);
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void xfs_reclaim_worker(struct work_struct *work);
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int xfs_reclaim_inodes(struct xfs_mount *mp, int mode);
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int xfs_reclaim_inodes_count(struct xfs_mount *mp);
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long xfs_reclaim_inodes_nr(struct xfs_mount *mp, int nr_to_scan);
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void xfs_inode_set_reclaim_tag(struct xfs_inode *ip);
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void xfs_inode_set_eofblocks_tag(struct xfs_inode *ip);
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void xfs_inode_clear_eofblocks_tag(struct xfs_inode *ip);
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int xfs_icache_free_eofblocks(struct xfs_mount *, struct xfs_eofblocks *);
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void xfs_eofblocks_worker(struct work_struct *);
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int xfs_inode_ag_iterator(struct xfs_mount *mp,
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int (*execute)(struct xfs_inode *ip, struct xfs_perag *pag,
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int flags, void *args),
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int flags, void *args);
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int xfs_inode_ag_iterator_tag(struct xfs_mount *mp,
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int (*execute)(struct xfs_inode *ip, struct xfs_perag *pag,
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int flags, void *args),
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int flags, void *args, int tag);
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static inline int
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xfs_fs_eofblocks_from_user(
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struct xfs_fs_eofblocks *src,
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struct xfs_eofblocks *dst)
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{
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if (src->eof_version != XFS_EOFBLOCKS_VERSION)
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return EINVAL;
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if (src->eof_flags & ~XFS_EOF_FLAGS_VALID)
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return EINVAL;
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if (memchr_inv(&src->pad32, 0, sizeof(src->pad32)) ||
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memchr_inv(src->pad64, 0, sizeof(src->pad64)))
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return EINVAL;
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dst->eof_flags = src->eof_flags;
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dst->eof_prid = src->eof_prid;
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dst->eof_min_file_size = src->eof_min_file_size;
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dst->eof_uid = INVALID_UID;
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if (src->eof_flags & XFS_EOF_FLAGS_UID) {
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dst->eof_uid = make_kuid(current_user_ns(), src->eof_uid);
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if (!uid_valid(dst->eof_uid))
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return EINVAL;
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}
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dst->eof_gid = INVALID_GID;
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if (src->eof_flags & XFS_EOF_FLAGS_GID) {
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dst->eof_gid = make_kgid(current_user_ns(), src->eof_gid);
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if (!gid_valid(dst->eof_gid))
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return EINVAL;
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}
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return 0;
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}
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#endif
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