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| author | Eric Sandeen <sandeen@redhat.com> | 2009-10-12 21:34:27 -0500 |
|---|---|---|
| committer | Jan Kara <jack@suse.cz> | 2009-11-11 15:22:49 +0100 |
| commit | ea0174a7137c8ca9f130ca681f3a99c872da6778 (patch) | |
| tree | 9736ef15e0250810f204bfb8d6987bd71eeba111 | |
| parent | 799dd75b1a8380a967c929a4551895788c374b31 (diff) | |
| download | kernel_samsung_espresso10-ea0174a7137c8ca9f130ca681f3a99c872da6778.zip kernel_samsung_espresso10-ea0174a7137c8ca9f130ca681f3a99c872da6778.tar.gz kernel_samsung_espresso10-ea0174a7137c8ca9f130ca681f3a99c872da6778.tar.bz2 | |
ext3: retry failed direct IO allocations
On a 256M 4k block filesystem, doing this in a loop:
dd if=/dev/zero of=test oflag=direct bs=1M count=64
rm -f test
eventually leads to spurious ENOSPC:
dd: writing `test': No space left on device
As with other block allocation callers, it looks like we need to
potentially retry the allocations on the initial ENOSPC.
A similar patch went into ext4 (commit
fbbf69456619de5d251cb9f1df609069178c62d5)
Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: Jan Kara <jack@suse.cz>
| -rw-r--r-- | fs/ext3/inode.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/ext3/inode.c b/fs/ext3/inode.c index acf1b14..069a163 100644 --- a/fs/ext3/inode.c +++ b/fs/ext3/inode.c @@ -1735,6 +1735,7 @@ static ssize_t ext3_direct_IO(int rw, struct kiocb *iocb, ssize_t ret; int orphan = 0; size_t count = iov_length(iov, nr_segs); + int retries = 0; if (rw == WRITE) { loff_t final_size = offset + count; @@ -1757,9 +1758,12 @@ static ssize_t ext3_direct_IO(int rw, struct kiocb *iocb, } } +retry: ret = blockdev_direct_IO(rw, iocb, inode, inode->i_sb->s_bdev, iov, offset, nr_segs, ext3_get_block, NULL); + if (ret == -ENOSPC && ext3_should_retry_alloc(inode->i_sb, &retries)) + goto retry; if (orphan) { int err; |