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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2008-07-02 19:25:36 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-07-02 19:25:36 -0700 |
| commit | 0e77a07ff9d18cdfc6c1fdd5b3c667ae79895489 (patch) | |
| tree | 0b8b5a24f3c7081244b0a64625f6184733de43cf /fs/buffer.c | |
| parent | 23c0e4a2257051113a99e1377c49af224bd27bc8 (diff) | |
| parent | 18ce3751ccd488c78d3827e9f6bf54e6322676fb (diff) | |
| download | kernel-crypto-0e77a07ff9d18cdfc6c1fdd5b3c667ae79895489.tar.gz kernel-crypto-0e77a07ff9d18cdfc6c1fdd5b3c667ae79895489.tar.xz kernel-crypto-0e77a07ff9d18cdfc6c1fdd5b3c667ae79895489.zip | |
Merge branch 'for-2.6.26' of git://git.kernel.dk/linux-2.6-block
* 'for-2.6.26' of git://git.kernel.dk/linux-2.6-block:
Properly notify block layer of sync writes
block: Fix the starving writes bug in the anticipatory IO scheduler
Diffstat (limited to 'fs/buffer.c')
| -rw-r--r-- | fs/buffer.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/fs/buffer.c b/fs/buffer.c index a073f3f4f01..0f51c0f7c26 100644 --- a/fs/buffer.c +++ b/fs/buffer.c @@ -821,7 +821,7 @@ static int fsync_buffers_list(spinlock_t *lock, struct list_head *list) * contents - it is a noop if I/O is still in * flight on potentially older contents. */ - ll_rw_block(SWRITE, 1, &bh); + ll_rw_block(SWRITE_SYNC, 1, &bh); brelse(bh); spin_lock(lock); } @@ -2940,16 +2940,19 @@ void ll_rw_block(int rw, int nr, struct buffer_head *bhs[]) for (i = 0; i < nr; i++) { struct buffer_head *bh = bhs[i]; - if (rw == SWRITE) + if (rw == SWRITE || rw == SWRITE_SYNC) lock_buffer(bh); else if (test_set_buffer_locked(bh)) continue; - if (rw == WRITE || rw == SWRITE) { + if (rw == WRITE || rw == SWRITE || rw == SWRITE_SYNC) { if (test_clear_buffer_dirty(bh)) { bh->b_end_io = end_buffer_write_sync; get_bh(bh); - submit_bh(WRITE, bh); + if (rw == SWRITE_SYNC) + submit_bh(WRITE_SYNC, bh); + else + submit_bh(WRITE, bh); continue; } } else { @@ -2978,7 +2981,7 @@ int sync_dirty_buffer(struct buffer_head *bh) if (test_clear_buffer_dirty(bh)) { get_bh(bh); bh->b_end_io = end_buffer_write_sync; - ret = submit_bh(WRITE, bh); + ret = submit_bh(WRITE_SYNC, bh); wait_on_buffer(bh); if (buffer_eopnotsupp(bh)) { clear_buffer_eopnotsupp(bh); |