diff options
author | Artem Bityutskiy <Artem.Bityutskiy@nokia.com> | 2009-09-21 12:09:22 +0300 |
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committer | Artem Bityutskiy <Artem.Bityutskiy@nokia.com> | 2009-09-21 12:09:22 +0300 |
commit | 7cce2f4cb7f5f641f78c8e3eea4e7b1b96cb71c0 (patch) | |
tree | b064d077928cf224660ab1e1841cdab2c9fd8b08 /fs/nilfs2/ioctl.c | |
parent | e055f7e873d900925c222cf2d1ec955af4a9ca90 (diff) | |
parent | ebc79c4f8da0f92efa968e0328f32334a2ce80cf (diff) |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into linux-next
Conflicts:
fs/ubifs/super.c
Merge the upstream tree in order to resolve a conflict with the
per-bdi writeback changes from the linux-2.6-block tree.
Diffstat (limited to 'fs/nilfs2/ioctl.c')
-rw-r--r-- | fs/nilfs2/ioctl.c | 26 |
1 files changed, 19 insertions, 7 deletions
diff --git a/fs/nilfs2/ioctl.c b/fs/nilfs2/ioctl.c index 6ea5f872e2d..6572ea4bc4d 100644 --- a/fs/nilfs2/ioctl.c +++ b/fs/nilfs2/ioctl.c @@ -442,12 +442,6 @@ int nilfs_ioctl_prepare_clean_segments(struct the_nilfs *nilfs, const char *msg; int ret; - ret = nilfs_ioctl_move_blocks(nilfs, &argv[0], kbufs[0]); - if (ret < 0) { - msg = "cannot read source blocks"; - goto failed; - } - ret = nilfs_ioctl_delete_checkpoints(nilfs, &argv[1], kbufs[1]); if (ret < 0) { /* @@ -548,7 +542,25 @@ static int nilfs_ioctl_clean_segments(struct inode *inode, struct file *filp, } } - ret = nilfs_clean_segments(inode->i_sb, argv, kbufs); + /* + * nilfs_ioctl_move_blocks() will call nilfs_gc_iget(), + * which will operates an inode list without blocking. + * To protect the list from concurrent operations, + * nilfs_ioctl_move_blocks should be atomic operation. + */ + if (test_and_set_bit(THE_NILFS_GC_RUNNING, &nilfs->ns_flags)) { + ret = -EBUSY; + goto out_free; + } + + ret = nilfs_ioctl_move_blocks(nilfs, &argv[0], kbufs[0]); + if (ret < 0) + printk(KERN_ERR "NILFS: GC failed during preparation: " + "cannot read source blocks: err=%d\n", ret); + else + ret = nilfs_clean_segments(inode->i_sb, argv, kbufs); + + clear_nilfs_gc_running(nilfs); out_free: while (--n >= 0) |