[PATCH-Review] f2fs: Set GF_NOFS in read_cache_page_gfp while doing f2fs_quota_read
Hello, Observed below deadlock with quota enabled on f2fs during low memory situation. I think during f2fs_quota_enable -> which is doing read_cache_page with __GFP_FS flag set, due to low memory this is causing shrinker to get invoked and thus going into a deadlock due to mutex lock in dquota. Commit details in next patch contains the call stack. Since I did not had the quota enabled on f2fs configuration, I could not test this on my setup yet. Could the community kindly review and let me know if the patch is correct or not ? Ritesh Harjani (1): f2fs: Set GF_NOFS in read_cache_page_gfp while doing f2fs_quota_read fs/f2fs/super.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) -- The Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, a Linux Foundation Collaborative Project.
[PATCH-Review] f2fs: Set GF_NOFS in read_cache_page_gfp while doing f2fs_quota_read
Hello, Observed below deadlock with quota enabled on f2fs during low memory situation. I think during f2fs_quota_enable -> which is doing read_cache_page with __GFP_FS flag set, due to low memory this is causing shrinker to get invoked and thus going into a deadlock due to mutex lock in dquota. Commit details in next patch contains the call stack. Since I did not had the quota enabled on f2fs configuration, I could not test this on my setup yet. Could the community kindly review and let me know if the patch is correct or not ? Ritesh Harjani (1): f2fs: Set GF_NOFS in read_cache_page_gfp while doing f2fs_quota_read fs/f2fs/super.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) -- The Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, a Linux Foundation Collaborative Project.
