RepoMirrors/mars
1
0
Fork 0
mirror of https://github.com/schoebel/mars synced 2024-12-26 00:22:31 +00:00
Code Issues Packages Projects Releases Wiki Activity

aio: fix race on array index

Browse Source
This commit is contained in:
Thomas Schoebel-Theuer 2017-06-02 12:37:19 +02:00 committed by Thomas Schoebel-Theuer
parent 5c7514d512
commit 57c9da1800
1 changed files with 5 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
kernel/mars_aio.c
View File

@ -407,6 +407,7 @@ static int aio_submit(struct aio_output *output, struct aio_mref_aspect *mref_a,
// .aio_reqprio = something(mref->ref_prio) field exists, but not yet implemented in kernelspace :(
};
struct iocb *iocbp = &iocb;
struct timing_stats *this_timing = &timings[mref->ref_rw & 1];
unsigned long long latency;
mars_trace(mref, "aio_submit");
@ -419,7 +420,10 @@ static int aio_submit(struct aio_output *output, struct aio_mref_aspect *mref_a,
oldfs = get_fs();
set_fs(get_ds());
latency = TIME_STATS(&timings[mref->ref_rw & 1], res = sys_io_submit(output->ctxp, 1, &iocbp));
latency = TIME_STATS(
this_timing,
res = sys_io_submit(output->ctxp, 1, &iocbp)
);
set_fs(oldfs);
threshold_check(&aio_submit_threshold, latency);