Jaegeuk Kim 9236cac566 f2fs: fix a deadlock for summary page lock vs. sentry_lock ...

In f2fs_gc:                      In f2fs_replace_block:
 - lock_page(sum_page)
  - check_valid_map()            - mutex_lock(sentry_lock)
   - mutex_lock(sentry_lock)     - change_curseg()
                                  - lock_page(sum_page)

This patch fixes the deadlock condition.

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

2015-06-01 16:21:09 -07:00

20 KiB

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