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Subject[PATCH 3/6] f2fs: keep quota data on write_begin failure
Date
This patch avoids some unnecessary locks for quota files when write_begin
fails.

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
fs/f2fs/data.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index fc40a72f7827..3b2945121557 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -2600,14 +2600,16 @@ static void f2fs_write_failed(struct address_space *mapping, loff_t to)
struct inode *inode = mapping->host;
loff_t i_size = i_size_read(inode);

+ if (IS_NOQUOTA(inode))
+ return;
+
/* In the fs-verity case, f2fs_end_enable_verity() does the truncate */
if (to > i_size && !f2fs_verity_in_progress(inode)) {
down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
down_write(&F2FS_I(inode)->i_mmap_sem);

truncate_pagecache(inode, i_size);
- if (!IS_NOQUOTA(inode))
- f2fs_truncate_blocks(inode, i_size, true);
+ f2fs_truncate_blocks(inode, i_size, true);

up_write(&F2FS_I(inode)->i_mmap_sem);
up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
--
2.19.0.605.g01d371f741-goog
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