a7y18lte-ubports/android_kernel_samsung_universal7885
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f2fs: avoid to drop nat entries due to the negative nr_shrink

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The try_to_free_nats should not receive the negative nr_shrink.
Otherwise, it can drop all the nat entries by the while loop.

Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
This commit is contained in:
Jaegeuk Kim 2014-03-19 10:43:59 +09:00
parent 3cb5ad152b
commit 40bb0058c8
1 changed files with 1 additions and 1 deletions
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fs/f2fs/node.c
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@ -208,7 +208,7 @@ int try_to_free_nats(struct f2fs_sb_info *sbi, int nr_shrink)
{ {
struct f2fs_nm_info *nm_i = NM_I(sbi); struct f2fs_nm_info *nm_i = NM_I(sbi);
if (nm_i->nat_cnt <= NM_WOUT_THRESHOLD) if (nm_i->nat_cnt <= NM_WOUT_THRESHOLD || nr_shrink <= 0)
return 0; return 0;
write_lock(&nm_i->nat_tree_lock); write_lock(&nm_i->nat_tree_lock);