ext4: mark fc ineligible if inode gets evictied due to mem pressure
If inode gets evicted due to memory pressure, we have to remove it from the fast commit list. However, that inode may have uncommitted changes that fast commits will lose. So, just fall back to full commits in this case. Also, rename the fast commit ineligiblity reason from "EXT4_FC_REASON_MEM" to "EXT4_FC_REASON_MEM_NOMEM" for better expression. Suggested-by: NJan Kara <jack@suse.cz> Signed-off-by: NHarshad Shirwadkar <harshadshirwadkar@gmail.com> Link: https://lore.kernel.org/r/20201106035911.1942128-3-harshadshirwadkar@gmail.comSigned-off-by: NTheodore Ts'o <tytso@mit.edu>
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