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| author | Andrew Morton <akpm@osdl.org> | 2006-02-01 03:04:39 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-02-01 08:53:09 -0800 |
| commit | caf736085f2f0d22a992a855d9caae14973f7ea4 (patch) | |
| tree | 1224cebafe4104c9621ffa06c08311c19668acc5 /fs | |
| parent | 389d1ea50849f84c3a9f8640fcb66827746b4ab4 (diff) | |
| download | linux-3.10-caf736085f2f0d22a992a855d9caae14973f7ea4.tar.gz linux-3.10-caf736085f2f0d22a992a855d9caae14973f7ea4.tar.bz2 linux-3.10-caf736085f2f0d22a992a855d9caae14973f7ea4.zip | |
[PATCH] smbfs readdir vs signal fix
An old patch designed to fix http://bugme.osdl.org/show_bug.cgi?id=4497,
"getdents gives empty/random result upon signal".
If smbfs's readdir() is interupted by a signal, smb_readdir() failed to
noticed that and proceeded to treat the unread-into page as valid directory
contents. Fix that up by handling the -ERESTARTSYS.
Thanks to Stian Skjelstad for reporting and testing.
Cc: Stian Skjelstad <stian@nixia.no>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/smbfs/dir.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/fs/smbfs/dir.c b/fs/smbfs/dir.c index c6c33e15143..0424d06b147 100644 --- a/fs/smbfs/dir.c +++ b/fs/smbfs/dir.c @@ -209,6 +209,8 @@ init_cache: ctl.valid = 1; read_really: result = server->ops->readdir(filp, dirent, filldir, &ctl); + if (result == -ERESTARTSYS && page) + ClearPageUptodate(page); if (ctl.idx == -1) goto invalid_cache; /* retry */ ctl.head.end = ctl.fpos - 1; @@ -217,7 +219,8 @@ finished: if (page) { cache->head = ctl.head; kunmap(page); - SetPageUptodate(page); + if (result != -ERESTARTSYS) + SetPageUptodate(page); unlock_page(page); page_cache_release(page); } |