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Btrfs: update stale comments referencing vmtruncate()
Commit a41ad394a0
("Btrfs: convert to the new truncate sequence")
changed btrfs_setsize() to call truncate_setsize() instead of
vmtruncate() but didn't update the comment above it. truncate_setsize()
never fails (the IS_SWAPFILE() check happens elsewhere), so remove the
comment.
Additionally, the comment above btrfs_page_mkwrite() references
vmtruncate(), but truncate_setsize() does the size write and page
locking now.
Signed-off-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
parent
c442793e67
commit
d1342aadbd
1 changed files with 2 additions and 3 deletions
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@ -5369,7 +5369,6 @@ static int btrfs_setsize(struct inode *inode, struct iattr *attr)
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if (ret)
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if (ret)
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return ret;
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return ret;
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/* we don't support swapfiles, so vmtruncate shouldn't fail */
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truncate_setsize(inode, newsize);
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truncate_setsize(inode, newsize);
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/* Disable nonlocked read DIO to avoid the end less truncate */
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/* Disable nonlocked read DIO to avoid the end less truncate */
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@ -9044,8 +9043,8 @@ static void btrfs_invalidatepage(struct page *page, unsigned int offset,
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*
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*
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* We are not allowed to take the i_mutex here so we have to play games to
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* We are not allowed to take the i_mutex here so we have to play games to
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* protect against truncate races as the page could now be beyond EOF. Because
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* protect against truncate races as the page could now be beyond EOF. Because
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* vmtruncate() writes the inode size before removing pages, once we have the
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* truncate_setsize() writes the inode size before removing pages, once we have
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* page lock we can determine safely if the page is beyond EOF. If it is not
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* the page lock we can determine safely if the page is beyond EOF. If it is not
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* beyond EOF, then the page is guaranteed safe against truncation until we
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* beyond EOF, then the page is guaranteed safe against truncation until we
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* unlock the page.
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* unlock the page.
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*/
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*/
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