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| author | JP Abgrall <jpa@google.com> | 2012-04-24 21:45:20 -0700 |
|---|---|---|
| committer | JP Abgrall <jpa@google.com> | 2012-04-24 21:45:20 -0700 |
| commit | 10add970b62d2276541af9e5fb0581d6d8434db4 (patch) | |
| tree | afd79e8507c5fa243c044a6963072b6a6d0f059b /block/cfq-iosched.c | |
| parent | 9cea9c804af57f8538dc910e24c407c81e496e51 (diff) | |
| parent | 66510aa1148e3457e7d46e0a2582dac7c591b95d (diff) | |
| download | kernel_samsung_crespo-10add970b62d2276541af9e5fb0581d6d8434db4.zip kernel_samsung_crespo-10add970b62d2276541af9e5fb0581d6d8434db4.tar.gz kernel_samsung_crespo-10add970b62d2276541af9e5fb0581d6d8434db4.tar.bz2 | |
Merge remote-tracking branch 'common/android-3.0' into android-samsung-30-wip-mergedown
* common/android-3.0: (1178 commits)
cpufreq: interactive: remove unused target_validate_time_in_idle
cpufreq: interactive: Boost frequency on touchscreen input
cpufreq: Separate speed target revalidate time and initial set time
cpufreq: interactive: based hispeed bump on target freq, not actual
cpufreq: interactive: adjust code and documentation to match
cpufreq: interactive: configurable delay before raising above hispeed
sync: add poll support
sw_sync: add fill_driver_data support
sync: add ioctl to get fence data
sw_sync: add debug support
sync: add debugfs support
sync: add timestamps to sync_pts
sw_sync: add cpu based sync driver
sync: Add synchronization framework
Linux 3.0.28
Bluetooth: Fix l2cap conn failures for ssp devices
TOMOYO: Fix mount flags checking order.
iommu/amd: Make sure IOMMU interrupts are re-enabled on resume
cred: copy_process() should clear child->replacement_session_keyring
ASoC: ak4642: fixup: mute needs +1 step
...
Conflicts:
mm/compaction.c
Change-Id: I3dc59225d2435eddbed0c639155179e580891ac8
Signed-off-by: JP Abgrall <jpa@google.com>
Diffstat (limited to 'block/cfq-iosched.c')
| -rw-r--r-- | block/cfq-iosched.c | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c index ae21919..23500ac 100644 --- a/block/cfq-iosched.c +++ b/block/cfq-iosched.c @@ -3169,7 +3169,7 @@ static int cfq_cic_link(struct cfq_data *cfqd, struct io_context *ioc, } } - if (ret) + if (ret && ret != -EEXIST) printk(KERN_ERR "cfq: cic link failed!\n"); return ret; @@ -3185,6 +3185,7 @@ cfq_get_io_context(struct cfq_data *cfqd, gfp_t gfp_mask) { struct io_context *ioc = NULL; struct cfq_io_context *cic; + int ret; might_sleep_if(gfp_mask & __GFP_WAIT); @@ -3192,6 +3193,7 @@ cfq_get_io_context(struct cfq_data *cfqd, gfp_t gfp_mask) if (!ioc) return NULL; +retry: cic = cfq_cic_lookup(cfqd, ioc); if (cic) goto out; @@ -3200,7 +3202,12 @@ cfq_get_io_context(struct cfq_data *cfqd, gfp_t gfp_mask) if (cic == NULL) goto err; - if (cfq_cic_link(cfqd, ioc, cic, gfp_mask)) + ret = cfq_cic_link(cfqd, ioc, cic, gfp_mask); + if (ret == -EEXIST) { + /* someone has linked cic to ioc already */ + cfq_cic_free(cic); + goto retry; + } else if (ret) goto err_free; out: @@ -4015,6 +4022,11 @@ static void *cfq_init_queue(struct request_queue *q) if (blkio_alloc_blkg_stats(&cfqg->blkg)) { kfree(cfqg); + + spin_lock(&cic_index_lock); + ida_remove(&cic_index_ida, cfqd->cic_index); + spin_unlock(&cic_index_lock); + kfree(cfqd); return NULL; } |