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| author | Michael Halcrow <mhalcrow@us.ibm.com> | 2008-10-16 05:02:49 (GMT) |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-10-16 18:21:38 (GMT) |
| commit | 7d6c7045581d3736c5f14053eb59342aa0b2cc07 (patch) | |
| tree | 3906a3e8b0d4a2e4752c4eb19defc62691d200d7 /fs/ecryptfs/file.c | |
| parent | 9d793b0bcbbbc37d80241862dfa5257963d5415e (diff) | |
| download | linux-7d6c7045581d3736c5f14053eb59342aa0b2cc07.tar.xz | |
eCryptfs: remove retry loop in ecryptfs_readdir()
The retry block in ecryptfs_readdir() has been in the eCryptfs code base
for a while, apparently for no good reason. This loop could potentially
run without terminating. This patch removes the loop, instead erroring
out if vfs_readdir() on the lower file fails.
Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com>
Reported-by: Al Viro <viro@ZinIV.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/ecryptfs/file.c')
| -rw-r--r-- | fs/ecryptfs/file.c | 17 |
1 files changed, 8 insertions, 9 deletions
diff --git a/fs/ecryptfs/file.c b/fs/ecryptfs/file.c index 9244d65..eb3dc4c 100644 --- a/fs/ecryptfs/file.c +++ b/fs/ecryptfs/file.c @@ -71,12 +71,11 @@ struct ecryptfs_getdents_callback { void *dirent; struct dentry *dentry; filldir_t filldir; - int err; int filldir_called; int entries_written; }; -/* Inspired by generic filldir in fs/readir.c */ +/* Inspired by generic filldir in fs/readdir.c */ static int ecryptfs_filldir(void *dirent, const char *name, int namelen, loff_t offset, u64 ino, unsigned int d_type) @@ -125,18 +124,18 @@ static int ecryptfs_readdir(struct file *file, void *dirent, filldir_t filldir) buf.dirent = dirent; buf.dentry = file->f_path.dentry; buf.filldir = filldir; -retry: buf.filldir_called = 0; buf.entries_written = 0; - buf.err = 0; rc = vfs_readdir(lower_file, ecryptfs_filldir, (void *)&buf); - if (buf.err) - rc = buf.err; - if (buf.filldir_called && !buf.entries_written) - goto retry; file->f_pos = lower_file->f_pos; + if (rc < 0) + goto out; + if (buf.filldir_called && !buf.entries_written) + goto out; if (rc >= 0) - fsstack_copy_attr_atime(inode, lower_file->f_path.dentry->d_inode); + fsstack_copy_attr_atime(inode, + lower_file->f_path.dentry->d_inode); +out: return rc; } |