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dax: dirty inode only if required

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Signed-off-by: Dmitry Monakhov <[email protected]>
Reviewed-by: Jan Kara <[email protected]>
Reviewed-by: Ross Zwisler <[email protected]>
Cc: Matthew Wilcox <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Dmitry Monakhov 2016-02-05 15:36:55 -08:00 • committed by Linus Torvalds
commit d2b2a28e64
1 changed files with 2 additions and 1 deletions
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3
fs/dax.c
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@ -358,7 +358,8 @@ static int dax_radix_entry(struct address_space *mapping, pgoff_t index,
void *entry;
WARN_ON_ONCE(pmd_entry && !dirty);
__mark_inode_dirty(mapping->host, I_DIRTY_PAGES);
if (dirty)
__mark_inode_dirty(mapping->host, I_DIRTY_PAGES);
spin_lock_irq(&mapping->tree_lock);