diff options
| author | Christoph Hellwig <hch@infradead.org> | 2012-02-20 06:31:31 +0400 |
|---|---|---|
| committer | Ben Myers <bpm@sgi.com> | 2012-02-23 08:37:04 +0400 |
| commit | 9006fb91cfdf22812923f0536c7531c429c1aeab (patch) | |
| tree | 36b37fe3df405a57e8ede3d2a40ea6c307f40ae9 /fs/xfs/xfs_trans.c | |
| parent | 42ceedb3caffe67c4ec0dfbb78ce410832d429b9 (diff) | |
| download | linux-9006fb91cfdf22812923f0536c7531c429c1aeab.tar.xz | |
xfs: split and cleanup xfs_log_reserve
Split the log regrant case out of xfs_log_reserve into a separate function,
and merge xlog_grant_log_space and xlog_regrant_write_log_space into their
respective callers. Also replace the XFS_LOG_PERM_RESERV flag, which easily
got misused before the previous cleanups with a simple boolean parameter.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Mark Tinguely <tinguely@sgi.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
Diffstat (limited to 'fs/xfs/xfs_trans.c')
| -rw-r--r-- | fs/xfs/xfs_trans.c | 31 |
1 files changed, 20 insertions, 11 deletions
diff --git a/fs/xfs/xfs_trans.c b/fs/xfs/xfs_trans.c index 7adcdf15ae0c..103b00c90004 100644 --- a/fs/xfs/xfs_trans.c +++ b/fs/xfs/xfs_trans.c @@ -681,7 +681,6 @@ xfs_trans_reserve( uint flags, uint logcount) { - int log_flags; int error = 0; int rsvd = (tp->t_flags & XFS_TRANS_RESERVE) != 0; @@ -707,24 +706,32 @@ xfs_trans_reserve( * Reserve the log space needed for this transaction. */ if (logspace > 0) { - ASSERT((tp->t_log_res == 0) || (tp->t_log_res == logspace)); - ASSERT((tp->t_log_count == 0) || - (tp->t_log_count == logcount)); + bool permanent = false; + + ASSERT(tp->t_log_res == 0 || tp->t_log_res == logspace); + ASSERT(tp->t_log_count == 0 || tp->t_log_count == logcount); + if (flags & XFS_TRANS_PERM_LOG_RES) { - log_flags = XFS_LOG_PERM_RESERV; tp->t_flags |= XFS_TRANS_PERM_LOG_RES; + permanent = true; } else { ASSERT(tp->t_ticket == NULL); ASSERT(!(tp->t_flags & XFS_TRANS_PERM_LOG_RES)); - log_flags = 0; } - error = xfs_log_reserve(tp->t_mountp, logspace, logcount, - &tp->t_ticket, - XFS_TRANSACTION, log_flags, tp->t_type); - if (error) { - goto undo_blocks; + if (tp->t_ticket != NULL) { + ASSERT(flags & XFS_TRANS_PERM_LOG_RES); + error = xfs_log_regrant(tp->t_mountp, tp->t_ticket); + } else { + error = xfs_log_reserve(tp->t_mountp, logspace, + logcount, &tp->t_ticket, + XFS_TRANSACTION, permanent, + tp->t_type); } + + if (error) + goto undo_blocks; + tp->t_log_res = logspace; tp->t_log_count = logcount; } @@ -752,6 +759,8 @@ xfs_trans_reserve( */ undo_log: if (logspace > 0) { + int log_flags; + if (flags & XFS_TRANS_PERM_LOG_RES) { log_flags = XFS_LOG_REL_PERM_RESERV; } else { |