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| author | Al Viro <viro@zeniv.linux.org.uk> | 2010-06-02 17:38:30 -0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2010-08-09 16:47:44 -0400 |
| commit | a4ffdde6e56fdf8c34ddadc2674d6eb978083369 (patch) | |
| tree | 0fa07df92d804cb7d0482135195e4835cb16403a /fs/fs-writeback.c | |
| parent | b5fc510c48f631882ccec3c0f02a25d5b67de09f (diff) | |
| download | op-kernel-dev-a4ffdde6e56fdf8c34ddadc2674d6eb978083369.zip op-kernel-dev-a4ffdde6e56fdf8c34ddadc2674d6eb978083369.tar.gz | |
simplify checks for I_CLEAR/I_FREEING
add I_CLEAR instead of replacing I_FREEING with it. I_CLEAR is
equivalent to I_FREEING for almost all code looking at either;
it's there to keep track of having called clear_inode() exactly
once per inode lifetime, at some point after having set I_FREEING.
I_CLEAR and I_FREEING never get set at the same time with the
current code, so we can switch to setting i_flags to I_FREEING | I_CLEAR
instead of I_CLEAR without loss of information. As the result of
such change, checks become simpler and the amount of code that needs
to know about I_CLEAR shrinks a lot.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/fs-writeback.c')
| -rw-r--r-- | fs/fs-writeback.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c index d5be169..7608880 100644 --- a/fs/fs-writeback.c +++ b/fs/fs-writeback.c @@ -352,7 +352,7 @@ writeback_single_inode(struct inode *inode, struct writeback_control *wbc) spin_lock(&inode_lock); inode->i_state &= ~I_SYNC; - if (!(inode->i_state & (I_FREEING | I_CLEAR))) { + if (!(inode->i_state & I_FREEING)) { if ((inode->i_state & I_DIRTY_PAGES) && wbc->for_kupdate) { /* * More pages get dirtied by a fast dirtier. @@ -499,7 +499,7 @@ static int writeback_sb_inodes(struct super_block *sb, struct bdi_writeback *wb, if (inode_dirtied_after(inode, wbc->wb_start)) return 1; - BUG_ON(inode->i_state & (I_FREEING | I_CLEAR)); + BUG_ON(inode->i_state & I_FREEING); __iget(inode); pages_skipped = wbc->pages_skipped; writeback_single_inode(inode, wbc); @@ -935,7 +935,7 @@ void __mark_inode_dirty(struct inode *inode, int flags) if (hlist_unhashed(&inode->i_hash)) goto out; } - if (inode->i_state & (I_FREEING|I_CLEAR)) + if (inode->i_state & I_FREEING) goto out; /* @@ -1001,7 +1001,7 @@ static void wait_sb_inodes(struct super_block *sb) list_for_each_entry(inode, &sb->s_inodes, i_sb_list) { struct address_space *mapping; - if (inode->i_state & (I_FREEING|I_CLEAR|I_WILL_FREE|I_NEW)) + if (inode->i_state & (I_FREEING|I_WILL_FREE|I_NEW)) continue; mapping = inode->i_mapping; if (mapping->nrpages == 0) |
