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| author | Taesoo Kim <tsgatesv@gmail.com> | 2015-03-20 17:36:56 -0400 |
|---|---|---|
| committer | Ilya Dryomov <idryomov@gmail.com> | 2015-04-20 18:55:34 +0300 |
| commit | c1d00b2d9c4fc821e33c5cdfbdbc32677cb0e2e0 (patch) | |
| tree | 619b91acc56d2f807fdd979db42b226321e19ae8 /fs/ceph/addr.c | |
| parent | 1fe480235ad7236e8ea6c167af5a5d1ac24f8a88 (diff) | |
| download | linux-c1d00b2d9c4fc821e33c5cdfbdbc32677cb0e2e0.tar.gz linux-c1d00b2d9c4fc821e33c5cdfbdbc32677cb0e2e0.tar.bz2 linux-c1d00b2d9c4fc821e33c5cdfbdbc32677cb0e2e0.zip | |
ceph: properly release page upon error
When ceph_update_writeable_page fails (including -EAGAIN), it
unlocks (w/ unlock_page) the page but does not 'release'
(w/ page_cache_release) properly.
Upon error, properly set *pagep to NULL, indicating an error.
Signed-off-by: Taesoo Kim <tsgatesv@gmail.com>
Signed-off-by: Yan, Zheng <zyan@redhat.com>
Diffstat (limited to 'fs/ceph/addr.c')
| -rw-r--r-- | fs/ceph/addr.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/ceph/addr.c b/fs/ceph/addr.c index fd5599d32362..e723482c5f37 100644 --- a/fs/ceph/addr.c +++ b/fs/ceph/addr.c @@ -1146,6 +1146,10 @@ static int ceph_write_begin(struct file *file, struct address_space *mapping, inode, page, (int)pos, (int)len); r = ceph_update_writeable_page(file, pos, len, page); + if (r < 0) + page_cache_release(page); + else + *pagep = page; } while (r == -EAGAIN); return r; |