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| author | Al Viro <viro@ZenIV.linux.org.uk> | 2011-11-07 17:39:57 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-11-07 19:54:10 +0100 |
| commit | 50e696308c3fb18a4a0dae7b3a4d47469149c919 (patch) | |
| tree | 16ff458026c1551803b86d9e0f9f02c7a64182fa | |
| parent | device-mapper: using EXPORT_SYBOL in dm-space-map-checker.c needs export.h (diff) | |
| download | linux-50e696308c3fb18a4a0dae7b3a4d47469149c919.tar.xz linux-50e696308c3fb18a4a0dae7b3a4d47469149c919.zip | |
vfs: d_invalidate() should leave mountpoints alone
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | fs/dcache.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/fs/dcache.c b/fs/dcache.c index 274f13e2f094..a901c6901bce 100644 --- a/fs/dcache.c +++ b/fs/dcache.c @@ -546,9 +546,11 @@ int d_invalidate(struct dentry * dentry) * would make it unreachable from the root, * we might still populate it if it was a * working directory or similar). + * We also need to leave mountpoints alone, + * directory or not. */ - if (dentry->d_count > 1) { - if (dentry->d_inode && S_ISDIR(dentry->d_inode->i_mode)) { + if (dentry->d_count > 1 && dentry->d_inode) { + if (S_ISDIR(dentry->d_inode->i_mode) || d_mountpoint(dentry)) { spin_unlock(&dentry->d_lock); return -EBUSY; } |