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xfs: allow log ticket allocation to take allocation flags

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Delayed logging currently requires ticket allocation to succeed, so
we need to be able to sleep on allocation. It also should not allow
memory allocation to recurse into the filesystem. hence we need to
pass allocation flags directing the type of allocation the caller
requires.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Alex Elder <aelder@sgi.com>
This commit is contained in:
Dave Chinner 2010-05-07 11:04:17 +10:00 committed by Alex Elder
parent 524ee36fa4
commit 3383ca5780
1 changed files with 8 additions and 8 deletions
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16
fs/xfs/xfs_log.c
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@ -88,11 +88,9 @@ STATIC void xlog_ungrant_log_space(xlog_t *log,
/* local ticket functions */
STATIC xlog_ticket_t *xlog_ticket_alloc(xlog_t *log,
int unit_bytes,
int count,
char clientid,
uint flags);
STATIC xlog_ticket_t *xlog_ticket_alloc(xlog_t *log, int unit_bytes, int count,
char clientid, uint flags,
int alloc_flags);
#if defined(DEBUG)
STATIC void xlog_verify_dest_ptr(xlog_t *log, char *ptr);
@ -376,7 +374,8 @@ xfs_log_reserve(
} else {
/* may sleep if need to allocate more tickets */
internal_ticket = xlog_ticket_alloc(log, unit_bytes, cnt,
client, flags);
client, flags,
KM_SLEEP|KM_MAYFAIL);
if (!internal_ticket)
return XFS_ERROR(ENOMEM);
internal_ticket->t_trans_type = t_type;
@ -3331,13 +3330,14 @@ xlog_ticket_alloc(
int unit_bytes,
int cnt,
char client,
uint xflags)
uint xflags,
int alloc_flags)
{
struct xlog_ticket *tic;
uint num_headers;
int iclog_space;
tic = kmem_zone_zalloc(xfs_log_ticket_zone, KM_SLEEP|KM_MAYFAIL);
tic = kmem_zone_zalloc(xfs_log_ticket_zone, alloc_flags);
if (!tic)
return NULL;