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f2fs: support aligned pinned file

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This patch supports 2MB-aligned pinned file, which can guarantee no GC at all
by allocating fully valid 2MB segment.

Check free segments by has_not_enough_free_secs() with large budget.

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Jaegeuk Kim 2019-10-18 10:06:40 -07:00
commit f5a53edcf0
7 changed files with 73 additions and 11 deletions
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