From e9edb1d8a345119c9baafa1b240eb1ec06a44662 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Wed, 3 Mar 2010 08:53:51 -0500 Subject: GFS2: do not select QUOTA gfs2 only needs the quotactl code, not the generic quota implementation. Signed-off-by: Christoph Hellwig Signed-off-by: Steven Whitehouse diff --git a/fs/gfs2/Kconfig b/fs/gfs2/Kconfig index 4dcddf8..a47b431 100644 --- a/fs/gfs2/Kconfig +++ b/fs/gfs2/Kconfig @@ -8,7 +8,6 @@ config GFS2_FS select FS_POSIX_ACL select CRC32 select SLOW_WORK - select QUOTA select QUOTACTL help A cluster filesystem. -- cgit v0.10.2 From 2e95e3f668c85276ce699993596d3b52b0fcf4c5 Mon Sep 17 00:00:00 2001 From: Benjamin Marzinski Date: Wed, 10 Mar 2010 18:10:19 -0600 Subject: GFS2: Allow the number of committed revokes to temporarily be negative GFS2 tracks the number of revokes and unrevokes that are part of committed transactions via sd_log_commited_revoke. It is possible for one process to add revokes during its transaction, while another process unrevokes them during its transaction. If the second process finishes its transaction first, sd_log_commited_revoke will be decremented by the number of unrevokes that the second process did, without first being incremented by the number of revokes the first process did. This is fine, since all started transactions must be completed before the journal can be flushed. However, sd_log_commited_revoke is an unsigned integer, and log_refund() causes an assertion failure if it would go negative at the end of a transaction. This patch makes sd_log_commited_revoke a signed integer and allows it to go negative. __gfs2_log_flush() still checks that it mataches the actual number of revokes. Signed-off-by: Benjamin Marzinski Signed-off-by: Steven Whitehouse diff --git a/fs/gfs2/incore.h b/fs/gfs2/incore.h index b8025e5..3aac46f 100644 --- a/fs/gfs2/incore.h +++ b/fs/gfs2/incore.h @@ -616,7 +616,7 @@ struct gfs2_sbd { unsigned int sd_log_blks_reserved; unsigned int sd_log_commited_buf; unsigned int sd_log_commited_databuf; - unsigned int sd_log_commited_revoke; + int sd_log_commited_revoke; unsigned int sd_log_num_buf; unsigned int sd_log_num_revoke; diff --git a/fs/gfs2/log.c b/fs/gfs2/log.c index 4511b08..e5bf4b5 100644 --- a/fs/gfs2/log.c +++ b/fs/gfs2/log.c @@ -417,7 +417,7 @@ static unsigned int calc_reserved(struct gfs2_sbd *sdp) databufhdrs_needed = (sdp->sd_log_commited_databuf + (dbuf_limit - 1)) / dbuf_limit; - if (sdp->sd_log_commited_revoke) + if (sdp->sd_log_commited_revoke > 0) revokes = gfs2_struct2blk(sdp, sdp->sd_log_commited_revoke, sizeof(u64)); @@ -790,7 +790,6 @@ static void log_refund(struct gfs2_sbd *sdp, struct gfs2_trans *tr) gfs2_assert_withdraw(sdp, (((int)sdp->sd_log_commited_buf) >= 0) || (((int)sdp->sd_log_commited_databuf) >= 0)); sdp->sd_log_commited_revoke += tr->tr_num_revoke - tr->tr_num_revoke_rm; - gfs2_assert_withdraw(sdp, ((int)sdp->sd_log_commited_revoke) >= 0); reserved = calc_reserved(sdp); gfs2_assert_withdraw(sdp, sdp->sd_log_blks_reserved + tr->tr_reserved >= reserved); unused = sdp->sd_log_blks_reserved - reserved + tr->tr_reserved; -- cgit v0.10.2 From 720e7749279bde0d08684b1bb4e7a2eedeec6394 Mon Sep 17 00:00:00 2001 From: Sachin Prabhu Date: Thu, 11 Mar 2010 12:24:45 -0500 Subject: GFS2: Skip check for mandatory locks when unlocking gfs2_lock() will skip locks on file which have mode set to 02666. This is a problem in cases where the mode of the file is changed after a process has obtained a lock on the file. Such a lock will be skipped and will result in a BUG in locks_remove_flock(). gfs2_lock() should skip the check for mandatory locks when unlocking a file. Signed-off-by: Sachin Prabhu Signed-off-by: Steven Whitehouse diff --git a/fs/gfs2/file.c b/fs/gfs2/file.c index a6abbae8..e6dd2ae 100644 --- a/fs/gfs2/file.c +++ b/fs/gfs2/file.c @@ -640,7 +640,7 @@ static int gfs2_lock(struct file *file, int cmd, struct file_lock *fl) if (!(fl->fl_flags & FL_POSIX)) return -ENOLCK; - if (__mandatory_lock(&ip->i_inode)) + if (__mandatory_lock(&ip->i_inode) && fl->fl_type != F_UNLCK) return -ENOLCK; if (cmd == F_CANCELLK) { -- cgit v0.10.2