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author | Linus Torvalds <torvalds@linux-foundation.org> | 2016-12-16 10:58:12 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-12-16 10:58:12 -0800 |
commit | ff0f962ca3c38239b299a70e7eea27abfbb979c3 (patch) | |
tree | ab37876cf2e8af4900f11f44ac4b96cb0f15e548 /include/linux/fs.h | |
parent | 087a76d390cbb8c0d21ea0cb3672ab4a7bb76362 (diff) | |
parent | c3c8699664800a68600f1988302173067eaeaffa (diff) |
Merge branch 'overlayfs-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs
Pull overlayfs updates from Miklos Szeredi:
"This update contains:
- try to clone on copy-up
- allow renaming a directory
- split source into managable chunks
- misc cleanups and fixes
It does not contain the read-only fd data inconsistency fix, which Al
didn't like. I'll leave that to the next year..."
* 'overlayfs-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs: (36 commits)
ovl: fix reStructuredText syntax errors in documentation
ovl: fix return value of ovl_fill_super
ovl: clean up kstat usage
ovl: fold ovl_copy_up_truncate() into ovl_copy_up()
ovl: create directories inside merged parent opaque
ovl: opaque cleanup
ovl: show redirect_dir mount option
ovl: allow setting max size of redirect
ovl: allow redirect_dir to default to "on"
ovl: check for emptiness of redirect dir
ovl: redirect on rename-dir
ovl: lookup redirects
ovl: consolidate lookup for underlying layers
ovl: fix nested overlayfs mount
ovl: check namelen
ovl: split super.c
ovl: use d_is_dir()
ovl: simplify lookup
ovl: check lower existence of rename target
ovl: rename: simplify handling of lower/merged directory
...
Diffstat (limited to 'include/linux/fs.h')
-rw-r--r-- | include/linux/fs.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/include/linux/fs.h b/include/linux/fs.h index b84230e070be..83de8b6601ba 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -1731,6 +1731,19 @@ extern int vfs_clone_file_range(struct file *file_in, loff_t pos_in, extern int vfs_dedupe_file_range(struct file *file, struct file_dedupe_range *same); +static inline int do_clone_file_range(struct file *file_in, loff_t pos_in, + struct file *file_out, loff_t pos_out, + u64 len) +{ + int ret; + + sb_start_write(file_inode(file_out)->i_sb); + ret = vfs_clone_file_range(file_in, pos_in, file_out, pos_out, len); + sb_end_write(file_inode(file_out)->i_sb); + + return ret; +} + struct super_operations { struct inode *(*alloc_inode)(struct super_block *sb); void (*destroy_inode)(struct inode *); |