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author | Sahitya Tummala <stummala@codeaurora.org> | 2019-07-29 10:50:26 +0530 |
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committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2019-09-09 13:06:11 +0100 |
commit | 957fa47823dfe449c5a15a944e4e7a299a6601db (patch) | |
tree | a58f58dbf5ce86e54f670308baa03326abcb2d8b /fs/f2fs/file.c | |
parent | cfb9a34d147b8d002d4330ddb53a3eb79565d17c (diff) | |
download | linux-957fa47823dfe449c5a15a944e4e7a299a6601db.tar.gz |
f2fs: Fix indefinite loop in f2fs_gc()
Policy - foreground GC, LFS mode and greedy GC mode. Under this policy, f2fs_gc() loops forever to GC as it doesn't have enough free segements to proceed and thus it keeps calling gc_more for the same victim segment. This can happen if the selected victim segment could not be GC'd due to failed blkaddr validity check i.e. is_alive() returns false for the blocks set in current validity map. Fix this by not resetting the sbi->cur_victim_sec to NULL_SEGNO, when the segment selected could not be GC'd. This helps to select another segment for GC and thus helps to proceed forward with GC. [Note] This can happen due to is_alive as well as atomic_file which skipps GC. Signed-off-by: Sahitya Tummala <stummala@codeaurora.org> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/file.c')
0 files changed, 0 insertions, 0 deletions