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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2014-10-26 11:19:18 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-10-26 11:19:18 -0700 |
| commit | d1e14f1d63eb15ebe97d1a8544ddc143486b0204 (patch) | |
| tree | a73e7c751f23835483f1e8029d04547192611975 /Documentation/filesystems/vfs.txt | |
| parent | 2cc91884b6b3f7328680b8ea7563016d3aee3d19 (diff) | |
| parent | db6ec212b53abc29a5bb6ac8c810010fc28d5191 (diff) | |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull vfs updates from Al Viro:
"overlayfs merge + leak fix for d_splice_alias() failure exits"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
overlayfs: embed middle into overlay_readdir_data
overlayfs: embed root into overlay_readdir_data
overlayfs: make ovl_cache_entry->name an array instead of pointer
overlayfs: don't hold ->i_mutex over opening the real directory
fix inode leaks on d_splice_alias() failure exits
fs: limit filesystem stacking depth
overlay: overlay filesystem documentation
overlayfs: implement show_options
overlayfs: add statfs support
overlay filesystem
shmem: support RENAME_WHITEOUT
ext4: support RENAME_WHITEOUT
vfs: add RENAME_WHITEOUT
vfs: add whiteout support
vfs: export check_sticky()
vfs: introduce clone_private_mount()
vfs: export __inode_permission() to modules
vfs: export do_splice_direct() to modules
vfs: add i_op->dentry_open()
Diffstat (limited to 'Documentation/filesystems/vfs.txt')
| -rw-r--r-- | Documentation/filesystems/vfs.txt | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/Documentation/filesystems/vfs.txt b/Documentation/filesystems/vfs.txt index fceff7c00a3c..20bf204426ca 100644 --- a/Documentation/filesystems/vfs.txt +++ b/Documentation/filesystems/vfs.txt @@ -364,6 +364,7 @@ struct inode_operations { int (*atomic_open)(struct inode *, struct dentry *, struct file *, unsigned open_flag, umode_t create_mode, int *opened); int (*tmpfile) (struct inode *, struct dentry *, umode_t); + int (*dentry_open)(struct dentry *, struct file *, const struct cred *); }; Again, all methods are called without any locks being held, unless @@ -696,6 +697,12 @@ struct address_space_operations { but instead uses bmap to find out where the blocks in the file are and uses those addresses directly. + dentry_open: *WARNING: probably going away soon, do not use!* This is an + alternative to f_op->open(), the difference is that this method may open + a file not necessarily originating from the same filesystem as the one + i_op->open() was called on. It may be useful for stacking filesystems + which want to allow native I/O directly on underlying files. + invalidatepage: If a page has PagePrivate set, then invalidatepage will be called when part or all of the page is to be removed |