path: root/fs
diff options
authorEric Sandeen <>2009-10-12 21:34:27 -0500
committerJan Kara <>2009-11-11 15:22:49 +0100
commitea0174a7137c8ca9f130ca681f3a99c872da6778 (patch)
tree9736ef15e0250810f204bfb8d6987bd71eeba111 /fs
parent799dd75b1a8380a967c929a4551895788c374b31 (diff)
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 <> Signed-off-by: Jan Kara <>
Diffstat (limited to 'fs')
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/ext3/inode.c b/fs/ext3/inode.c
index acf1b1423327..069a163393b4 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,
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;