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| author | Jaegeuk Kim | 2015-10-10 00:11:38 +0200 |
|---|---|---|
| committer | Jaegeuk Kim | 2015-10-12 22:38:03 +0200 |
| commit | a56c7c6fb3c60857c1335bcb8b914e6f65655486 (patch) | |
| tree | b05bb39180addddee4376a8e6d6169776375eb62 /fs/f2fs/gc.c | |
| parent | f2fs: fix SSA updates resulting in corruption (diff) | |
| download | kernel-qcow2-linux-a56c7c6fb3c60857c1335bcb8b914e6f65655486.tar.gz kernel-qcow2-linux-a56c7c6fb3c60857c1335bcb8b914e6f65655486.tar.xz kernel-qcow2-linux-a56c7c6fb3c60857c1335bcb8b914e6f65655486.zip | |
f2fs: set GFP_NOFS for grab_cache_page
For normal inodes, their pages are allocated with __GFP_FS, which can cause
filesystem calls when reclaiming memory.
This can incur a dead lock condition accordingly.
So, this patch addresses this problem by introducing
f2fs_grab_cache_page(.., bool for_write), which calls
grab_cache_page_write_begin() with AOP_FLAG_NOFS.
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/gc.c')
| -rw-r--r-- | fs/f2fs/gc.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c index e7cec86f0747..94278dbbdf7c 100644 --- a/fs/f2fs/gc.c +++ b/fs/f2fs/gc.c @@ -550,7 +550,7 @@ static void move_encrypted_block(struct inode *inode, block_t bidx) int err; /* do not read out */ - page = grab_cache_page(inode->i_mapping, bidx); + page = f2fs_grab_cache_page(inode->i_mapping, bidx, false); if (!page) return; @@ -620,7 +620,7 @@ static void move_data_page(struct inode *inode, block_t bidx, int gc_type) { struct page *page; - page = get_lock_data_page(inode, bidx); + page = get_lock_data_page(inode, bidx, true); if (IS_ERR(page)) return; @@ -714,7 +714,7 @@ next_step: start_bidx = start_bidx_of_node(nofs, F2FS_I(inode)); data_page = get_read_data_page(inode, - start_bidx + ofs_in_node, READA); + start_bidx + ofs_in_node, READA, true); if (IS_ERR(data_page)) { iput(inode); continue; |