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f2fs: avoid latency-critical readahead of node pages

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The f2fs_map_blocks is very related to the performance, so let's avoid any
latency to read ahead node pages.

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Jaegeuk Kim
2016-06-16 17:03:23 -07:00
parent 2c237ebaa4
commit ac6f199984
2 changed files with 2 additions and 2 deletions
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fs/f2fs/data.c
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@@ -652,7 +652,7 @@ int f2fs_map_blocks(struct inode *inode, struct f2fs_map_blocks *map,
unsigned int maxblocks = map->m_len;
struct dnode_of_data dn;
struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
int mode = create ? ALLOC_NODE : LOOKUP_NODE_RA;
int mode = create ? ALLOC_NODE : LOOKUP_NODE;
pgoff_t pgofs, end_offset, end;
int err = 0, ofs = 1;
unsigned int ofs_in_node, last_ofs_in_node;