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fuse: add feature flag for expire-only
commit5cadfbd5a1
upstream. Add an init flag idicating whether the FUSE_EXPIRE_ONLY flag of FUSE_NOTIFY_INVAL_ENTRY is effective. This is needed for backports of this feature, otherwise the server could just check the protocol version. Fixes:4f8d37020e
("fuse: add "expire only" mode to FUSE_NOTIFY_INVAL_ENTRY") Cc: <stable@vger.kernel.org> # v6.2 Signed-off-by: Miklos Szeredi <mszeredi@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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371b350731
commit
c5f559674c
2 changed files with 5 additions and 1 deletions
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@ -1254,7 +1254,8 @@ void fuse_send_init(struct fuse_mount *fm)
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FUSE_ABORT_ERROR | FUSE_MAX_PAGES | FUSE_CACHE_SYMLINKS |
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FUSE_NO_OPENDIR_SUPPORT | FUSE_EXPLICIT_INVAL_DATA |
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FUSE_HANDLE_KILLPRIV_V2 | FUSE_SETXATTR_EXT | FUSE_INIT_EXT |
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FUSE_SECURITY_CTX | FUSE_CREATE_SUPP_GROUP;
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FUSE_SECURITY_CTX | FUSE_CREATE_SUPP_GROUP |
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FUSE_HAS_EXPIRE_ONLY;
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#ifdef CONFIG_FUSE_DAX
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if (fm->fc->dax)
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flags |= FUSE_MAP_ALIGNMENT;
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@ -206,6 +206,7 @@
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* - add extension header
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* - add FUSE_EXT_GROUPS
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* - add FUSE_CREATE_SUPP_GROUP
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* - add FUSE_HAS_EXPIRE_ONLY
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*/
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#ifndef _LINUX_FUSE_H
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@ -369,6 +370,7 @@ struct fuse_file_lock {
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* FUSE_HAS_INODE_DAX: use per inode DAX
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* FUSE_CREATE_SUPP_GROUP: add supplementary group info to create, mkdir,
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* symlink and mknod (single group that matches parent)
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* FUSE_HAS_EXPIRE_ONLY: kernel supports expiry-only entry invalidation
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*/
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#define FUSE_ASYNC_READ (1 << 0)
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#define FUSE_POSIX_LOCKS (1 << 1)
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@ -406,6 +408,7 @@ struct fuse_file_lock {
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#define FUSE_SECURITY_CTX (1ULL << 32)
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#define FUSE_HAS_INODE_DAX (1ULL << 33)
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#define FUSE_CREATE_SUPP_GROUP (1ULL << 34)
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#define FUSE_HAS_EXPIRE_ONLY (1ULL << 35)
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/**
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* CUSE INIT request/reply flags
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