search for: unlock_buffer

...tp://www.zip.com.au/~akpm/linux/patches/2.4/2.4.20/ext3-scheduling-storm.patch Anyone who is using tasks which have realtime scheduling policy on ext3 systems should apply this change. Details: At the start of do_get_write_access() we have this logic: repeat: lock_buffer(jh->bh); ... unlock_buffer(jh->bh); ... if (jh->j_list == BJ_Shadow) { sleep_on_buffer(jh->bh); goto repeat; } The problem is that the unlock_buffer() will wake up anyone who is sleeping in the sleep_on_buffer(). So if task A is asleep in sleep_on_buffer() and task B now runs do_get_write_access(), tas...

.... Signed-off-by: Wengang wang <wen.gang.wang at oracle.com> -- Index: fs/ocfs2/super.c =================================================================== --- fs/ocfs2/super.c (revision 128) +++ fs/ocfs2/super.c (working copy) @@ -1203,6 +1203,12 @@ static int ocfs2_get_sector(struct super unlock_buffer(*bh); ll_rw_block(READ, 1, bh); wait_on_buffer(*bh); + if (!buffer_uptodate(*bh)) { + mlog_errno(-EIO); + brelse(*bh); + return -EIO; + } + return 0; }

...ff-by: Wengang Wang <wen.gang.wang at oracle.com> -- diff -up ./fs/ocfs2/super.c.orig ./fs/ocfs2/super.c --- ./fs/ocfs2/super.c.orig 2009-02-12 18:05:19.023685000 -0800 +++ ./fs/ocfs2/super.c 2009-02-12 18:07:13.995623000 -0800 @@ -1537,6 +1537,13 @@ static int ocfs2_get_sector(struct super unlock_buffer(*bh); ll_rw_block(READ, 1, bh); wait_on_buffer(*bh); + if (!buffer_uptodate(*bh)) { + mlog_errno(-EIO); + brelse(*bh); + *bh = NULL; + return -EIO; + } + return 0; }

Hi, here is the second version of OCFS2 quota fixes with Joel's comments fixed. Also I've added a patch defining counts of credits for quota operations as Joel asked. Honza

Hi, I did some more in-depth testing of OCFS2 quota code, especially with ECC feature enabled and spotted some problems. First four patches fix them. I need the fifth patch to be able to mount OCFS2 filesystem with 2.6.31-rc3. The sixth patch fixes a potential problem when quota syncing interval is updated while the cluster is running (which is not possible currently). Joel, could you please

...ck_buffer(bh); memset (bh->b_data, 0, journal->j_blocksize); - BUFFER_TRACE(bh, "marking dirty"); - mark_buffer_dirty(bh); BUFFER_TRACE(bh, "marking uptodate"); set_buffer_uptodate(bh); + BUFFER_TRACE(bh, "marking dirty"); + mark_buffer_dirty(bh); unlock_buffer(bh); __brelse(bh); } --Sonic Zhang

.... Signed-off-by: Wengang wang <wen.gang.wang at oracle.com> -- Index: fs/ocfs2/super.c =================================================================== --- fs/ocfs2/super.c (revision 128) +++ fs/ocfs2/super.c (working copy) @@ -1203,6 +1203,11 @@ static int ocfs2_get_sector(struct super unlock_buffer(*bh); ll_rw_block(READ, 1, bh); wait_on_buffer(*bh); + if (!buffer_uptodate(*bh)) { + mlog_errno(-EIO); + return -EIO; + } + return 0; }

The goal is to detect when drives start to get an increased error rate, when drives should be replaced soon. Therefore statistic counters are added that count IO errors (read, write and flush). Additionally, the software detected errors like checksum errors and corrupted blocks are counted. An ioctl interface is added to get the device statistic counters. A second ioctl is added to atomically get

Hi, This is the second batch of Ocfs2 patches intended for the merge window. The 1st batch were sent out previously: http://lkml.org/lkml/2008/12/19/280 The bulk of this set is comprised of Jan Kara's patches to add quota support to Ocfs2. Many of the quota patches are to generic code, which I carried to make merging of the Ocfs2 support easier. All of the non-ocfs2 patches should have

Changes v1-v2: - Remove restriction that BTRFS_IOC_GET_DEVICE_STATS is a privileged operation - Cast u64 to unsigned long long for printf() Changes v2-v3: - Rebased on Chris'' current master Changes v3-v4: - Add padding at end of ioctl structure Changes v4-v5: - The statistic members in the ioctl are now organized as an array of 64 bit values. Symbolic names for the array indexes

The following series of patches attempts to detach metadata I/O from struct inode. They are currently tied together pretty tightly. Metadata reads happen via the ocfs2_read_blocks() functions, writes via both jbd2 and ocfs2_write_blocks(). - Each inode has a cache of associated metadata blocks stored on its ip_metadata_cache member. The ocfs2_read/write_blocks() functions take a struct

Please review the list of patches being applied to the ocfs2 1.4 tree. All patches list the mainline commit hash. Thanks Sunil