AcoSail/kernel_optimize_test
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xfs_file_buffered_aio_write(): switch to generic_perform_write()

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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2014-02-11 22:25:22 -05:00
parent 3b93f911d5
commit 0a64bc2c04
1 changed files with 6 additions and 5 deletions
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11
fs/xfs/xfs_file.c
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@ -715,7 +715,7 @@ xfs_file_buffered_aio_write(
const struct iovec *iovp,
unsigned long nr_segs,
loff_t pos,
size_t ocount)
size_t count)
{
struct file *file = iocb->ki_filp;
struct address_space *mapping = file->f_mapping;
@ -724,7 +724,7 @@ xfs_file_buffered_aio_write(
ssize_t ret;
int enospc = 0;
int iolock = XFS_IOLOCK_EXCL;
size_t count = ocount;
struct iov_iter from;
xfs_rw_ilock(ip, iolock);
@ -732,14 +732,15 @@ xfs_file_buffered_aio_write(
if (ret)
goto out;
iov_iter_init(&from, iovp, nr_segs, count, 0);
/* We can write back this queue in page reclaim */
current->backing_dev_info = mapping->backing_dev_info;
write_retry:
trace_xfs_file_buffered_write(ip, count, iocb->ki_pos, 0);
ret = generic_file_buffered_write(iocb, iovp, nr_segs,
pos, count, 0);
ret = generic_perform_write(file, &from, pos);
if (likely(ret >= 0))
iocb->ki_pos = pos + ret;
/*
* If we just got an ENOSPC, try to write back all dirty inodes to
* convert delalloc space to free up some of the excess reserved