summaryrefslogtreecommitdiffstats
path: root/fs/ocfs2/file.c
diff options
context:
space:
mode:
authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2011-01-11 15:10:08 +1100
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2011-01-11 15:10:08 +1100
commiteed0ba0b4ab2d1668588219a8efa81bf8636a12d (patch)
treef5aa3c732e7830a1b24e6071f8bed0f799881187 /fs/ocfs2/file.c
parent98b14d6b290d96b24ae993ceaccc59b2aa4b130c (diff)
parentc9de9333f5a860cab82052bce6ac28bcac9b2c26 (diff)
downloadblackbird-op-linux-eed0ba0b4ab2d1668588219a8efa81bf8636a12d.tar.gz
blackbird-op-linux-eed0ba0b4ab2d1668588219a8efa81bf8636a12d.zip
Merge remote branch 'gcl/next' into next
Diffstat (limited to 'fs/ocfs2/file.c')
-rw-r--r--fs/ocfs2/file.c15
1 files changed, 13 insertions, 2 deletions
diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c
index 77b4c04a2809..f6cba566429d 100644
--- a/fs/ocfs2/file.c
+++ b/fs/ocfs2/file.c
@@ -2241,11 +2241,15 @@ static ssize_t ocfs2_file_aio_write(struct kiocb *iocb,
mutex_lock(&inode->i_mutex);
+ ocfs2_iocb_clear_sem_locked(iocb);
+
relock:
/* to match setattr's i_mutex -> i_alloc_sem -> rw_lock ordering */
if (direct_io) {
down_read(&inode->i_alloc_sem);
have_alloc_sem = 1;
+ /* communicate with ocfs2_dio_end_io */
+ ocfs2_iocb_set_sem_locked(iocb);
}
/*
@@ -2382,8 +2386,10 @@ out:
ocfs2_rw_unlock(inode, rw_level);
out_sems:
- if (have_alloc_sem)
+ if (have_alloc_sem) {
up_read(&inode->i_alloc_sem);
+ ocfs2_iocb_clear_sem_locked(iocb);
+ }
mutex_unlock(&inode->i_mutex);
@@ -2527,6 +2533,8 @@ static ssize_t ocfs2_file_aio_read(struct kiocb *iocb,
goto bail;
}
+ ocfs2_iocb_clear_sem_locked(iocb);
+
/*
* buffered reads protect themselves in ->readpage(). O_DIRECT reads
* need locks to protect pending reads from racing with truncate.
@@ -2534,6 +2542,7 @@ static ssize_t ocfs2_file_aio_read(struct kiocb *iocb,
if (filp->f_flags & O_DIRECT) {
down_read(&inode->i_alloc_sem);
have_alloc_sem = 1;
+ ocfs2_iocb_set_sem_locked(iocb);
ret = ocfs2_rw_lock(inode, 0);
if (ret < 0) {
@@ -2575,8 +2584,10 @@ static ssize_t ocfs2_file_aio_read(struct kiocb *iocb,
}
bail:
- if (have_alloc_sem)
+ if (have_alloc_sem) {
up_read(&inode->i_alloc_sem);
+ ocfs2_iocb_clear_sem_locked(iocb);
+ }
if (rw_level != -1)
ocfs2_rw_unlock(inode, rw_level);
mlog_exit(ret);
OpenPOWER on IntegriCloud