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| author | Kautuk Consul <consul.kautuk@gmail.com> | 2012-02-20 09:46:12 +0100 |
|---|---|---|
| committer | Boaz Harrosh <bharrosh@panasas.com> | 2012-08-02 13:52:12 +0200 |
| commit | 0e8d96dd2c99405c707f540b5922ec869b848979 (patch) | |
| tree | 4279e079a86060037f6f99c4a0fc1e20825269f9 | |
| parent | pnfs-obj: Fix __r4w_get_page when offset is beyond i_size (diff) | |
| download | linux-0e8d96dd2c99405c707f540b5922ec869b848979.tar.xz linux-0e8d96dd2c99405c707f540b5922ec869b848979.zip | |
exofs: readpage_strip: Add a BUG_ON to check for PageLocked(page)
readpage_strip can be called from several code paths all of which
require that the page be locked before any operations are carried
out.
Since we export the exofs_readpage callback to the VFS, add a
BUG_ON to check for PageLocked(page) to make sure that this
understanding is never compromised.
Signed-off-by: Kautuk Consul <consul.kautuk@gmail.com>
Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
| -rw-r--r-- | fs/exofs/inode.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/exofs/inode.c b/fs/exofs/inode.c index 5badb0c039de..9a5ed30b8a35 100644 --- a/fs/exofs/inode.c +++ b/fs/exofs/inode.c @@ -389,6 +389,8 @@ static int readpage_strip(void *data, struct page *page) size_t len; int ret; + BUG_ON(!PageLocked(page)); + /* FIXME: Just for debugging, will be removed */ if (PageUptodate(page)) EXOFS_ERR("PageUptodate(0x%lx, 0x%lx)\n", pcol->inode->i_ino, |