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| author | Al Viro <viro@zeniv.linux.org.uk> | 2013-06-11 08:34:36 +0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2013-06-29 12:57:11 +0400 |
| commit | f4e0c30c191f87851c4a53454abb55ee276f4a7e (patch) | |
| tree | 8bdb4f81dea303f93f1d646034653c8af3fba323 /fs/inode.c | |
| parent | 60545d0d4610b02e55f65d141c95b18ccf855b6e (diff) | |
| download | linux-f4e0c30c191f87851c4a53454abb55ee276f4a7e.tar.gz linux-f4e0c30c191f87851c4a53454abb55ee276f4a7e.tar.bz2 linux-f4e0c30c191f87851c4a53454abb55ee276f4a7e.zip | |
allow the temp files created by open() to be linked to
O_TMPFILE | O_CREAT => linkat() with AT_SYMLINK_FOLLOW and /proc/self/fd/<n>
as oldpath (i.e. flink()) will create a link
O_TMPFILE | O_CREAT | O_EXCL => ENOENT on attempt to link those guys
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/inode.c')
| -rw-r--r-- | fs/inode.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/fs/inode.c b/fs/inode.c index 00d5fc3b86e1..d6dfb09c8280 100644 --- a/fs/inode.c +++ b/fs/inode.c @@ -333,8 +333,10 @@ EXPORT_SYMBOL(set_nlink); */ void inc_nlink(struct inode *inode) { - if (WARN_ON(inode->i_nlink == 0)) + if (unlikely(inode->i_nlink == 0)) { + WARN_ON(!(inode->i_state & I_LINKABLE)); atomic_long_dec(&inode->i_sb->s_remove_count); + } inode->__i_nlink++; } |