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author | Linus Torvalds <torvalds@linux-foundation.org> | 2017-05-04 03:55:59 +0300 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-05-04 03:55:59 +0300 |
commit | dd23f273d9a765d7f092c1bb0d1cd7aaf668077e (patch) | |
tree | 9bf826a9f553c9b0a5e852deaaf58bee56b601ac /fs/jbd2/journal.c | |
parent | 1684096b1ed813f621fb6cbd06e72235c1c2a0ca (diff) | |
parent | b19385993623c1a18a686b6b271cd24d5aa96f52 (diff) | |
download | linux-dd23f273d9a765d7f092c1bb0d1cd7aaf668077e.tar.xz |
Merge branch 'akpm' (patches from Andrew)
Merge misc updates from Andrew Morton:
- a few misc things
- most of MM
- KASAN updates
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (102 commits)
kasan: separate report parts by empty lines
kasan: improve double-free report format
kasan: print page description after stacks
kasan: improve slab object description
kasan: change report header
kasan: simplify address description logic
kasan: change allocation and freeing stack traces headers
kasan: unify report headers
kasan: introduce helper functions for determining bug type
mm: hwpoison: call shake_page() after try_to_unmap() for mlocked page
mm: hwpoison: call shake_page() unconditionally
mm/swapfile.c: fix swap space leak in error path of swap_free_entries()
mm/gup.c: fix access_ok() argument type
mm/truncate: avoid pointless cleancache_invalidate_inode() calls.
mm/truncate: bail out early from invalidate_inode_pages2_range() if mapping is empty
fs/block_dev: always invalidate cleancache in invalidate_bdev()
fs: fix data invalidation in the cleancache during direct IO
zram: reduce load operation in page_same_filled
zram: use zram_free_page instead of open-coded
zram: introduce zram data accessor
...
Diffstat (limited to 'fs/jbd2/journal.c')
-rw-r--r-- | fs/jbd2/journal.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/fs/jbd2/journal.c b/fs/jbd2/journal.c index 5adc2fb62b0f..c43fe83ee708 100644 --- a/fs/jbd2/journal.c +++ b/fs/jbd2/journal.c @@ -43,6 +43,7 @@ #include <linux/backing-dev.h> #include <linux/bitops.h> #include <linux/ratelimit.h> +#include <linux/sched/mm.h> #define CREATE_TRACE_POINTS #include <trace/events/jbd2.h> @@ -206,6 +207,14 @@ static int kjournald2(void *arg) wake_up(&journal->j_wait_done_commit); /* + * Make sure that no allocations from this kernel thread will ever + * recurse to the fs layer because we are responsible for the + * transaction commit and any fs involvement might get stuck waiting for + * the trasn. commit. + */ + memalloc_nofs_save(); + + /* * And now, wait forever for commit wakeup events. */ write_lock(&journal->j_state_lock); |