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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2008-10-10 11:02:22 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-10-10 11:02:22 -0700 |
| commit | 445e1ceda377a681c6f53595311b0d654ca21003 (patch) | |
| tree | f3298bd926e67d33944992a485a05374f592bef1 /fs/gfs2/log.c | |
| parent | ef5bef357cdf49f3a386c7102dbf3be5f7e5c913 (diff) | |
| parent | 254db57f9b12daba841a4d91ddb9a8161e9c74ba (diff) | |
| download | kernel_goldelico_gta04-445e1ceda377a681c6f53595311b0d654ca21003.zip kernel_goldelico_gta04-445e1ceda377a681c6f53595311b0d654ca21003.tar.gz kernel_goldelico_gta04-445e1ceda377a681c6f53595311b0d654ca21003.tar.bz2 | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-nmw
* git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-nmw:
GFS2: Support for I/O barriers
GFS2: Add UUID to GFS2 sb
GFS2: high time to take some time over atime
GFS2: The war on bloat
GFS2: GFS2 will panic if you misspell any mount options
GFS2: Direct IO write at end of file error
GFS2: Use an IS_ERR test rather than a NULL test
GFS2: Fix race relating to glock min-hold time
GFS2: Fix & clean up GFS2 rename
GFS2: rm on multiple nodes causes panic
GFS2: Fix metafs mounts
GFS2: Fix debugfs glock file iterator
Diffstat (limited to 'fs/gfs2/log.c')
| -rw-r--r-- | fs/gfs2/log.c | 21 |
1 files changed, 18 insertions, 3 deletions
diff --git a/fs/gfs2/log.c b/fs/gfs2/log.c index 6c6af9f..ad30585 100644 --- a/fs/gfs2/log.c +++ b/fs/gfs2/log.c @@ -18,6 +18,7 @@ #include <linux/delay.h> #include <linux/kthread.h> #include <linux/freezer.h> +#include <linux/bio.h> #include "gfs2.h" #include "incore.h" @@ -584,7 +585,6 @@ static void log_write_header(struct gfs2_sbd *sdp, u32 flags, int pull) memset(bh->b_data, 0, bh->b_size); set_buffer_uptodate(bh); clear_buffer_dirty(bh); - unlock_buffer(bh); gfs2_ail1_empty(sdp, 0); tail = current_tail(sdp); @@ -601,8 +601,23 @@ static void log_write_header(struct gfs2_sbd *sdp, u32 flags, int pull) hash = gfs2_disk_hash(bh->b_data, sizeof(struct gfs2_log_header)); lh->lh_hash = cpu_to_be32(hash); - set_buffer_dirty(bh); - if (sync_dirty_buffer(bh)) + bh->b_end_io = end_buffer_write_sync; + if (test_bit(SDF_NOBARRIERS, &sdp->sd_flags)) + goto skip_barrier; + get_bh(bh); + submit_bh(WRITE_BARRIER | (1 << BIO_RW_META), bh); + wait_on_buffer(bh); + if (buffer_eopnotsupp(bh)) { + clear_buffer_eopnotsupp(bh); + set_buffer_uptodate(bh); + set_bit(SDF_NOBARRIERS, &sdp->sd_flags); + lock_buffer(bh); +skip_barrier: + get_bh(bh); + submit_bh(WRITE_SYNC | (1 << BIO_RW_META), bh); + wait_on_buffer(bh); + } + if (!buffer_uptodate(bh)) gfs2_io_error_bh(sdp, bh); brelse(bh); |