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| author | Chao Yu <chao2.yu@samsung.com> | 2016-02-24 17:20:44 +0800 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2016-02-25 17:27:03 -0800 |
| commit | 80dd9c0e9db220697301e76b7b61f580ad9e8ecd (patch) | |
| tree | e56ed4bab3b42033943ae3fdd86353e5f0db9936 /fs/f2fs/node.c | |
| parent | 0ff21646f2a5c6ff77acc51eb3df4235af39be46 (diff) | |
| download | lwn-80dd9c0e9db220697301e76b7b61f580ad9e8ecd.tar.gz lwn-80dd9c0e9db220697301e76b7b61f580ad9e8ecd.zip | |
f2fs: fix incorrect upper bound when iterating inode mapping tree
1. Inode mapping tree can index page in range of [0, ULONG_MAX], however,
in some places, f2fs only search or iterate page in ragne of [0, LONG_MAX],
result in miss hitting in page cache.
2. filemap_fdatawait_range accepts range parameters in unit of bytes, so
the max range it covers should be [0, LLONG_MAX], if we use [0, LONG_MAX]
as range for waiting on writeback, big number of pages will not be covered.
This patch corrects above two issues.
Signed-off-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/node.c')
| -rw-r--r-- | fs/f2fs/node.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c index 68506f46a479..7b613dd16e77 100644 --- a/fs/f2fs/node.c +++ b/fs/f2fs/node.c @@ -1238,7 +1238,7 @@ int sync_node_pages(struct f2fs_sb_info *sbi, nid_t ino, next_step: index = 0; - end = LONG_MAX; + end = ULONG_MAX; while (index <= end) { int i, nr_pages; @@ -1354,7 +1354,7 @@ continue_unlock: int wait_on_node_pages_writeback(struct f2fs_sb_info *sbi, nid_t ino) { - pgoff_t index = 0, end = LONG_MAX; + pgoff_t index = 0, end = ULONG_MAX; struct pagevec pvec; int ret2 = 0, ret = 0; |