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authorTheodore Ts'o <tytso@mit.edu>2009-01-03 09:47:09 -0500
committerTheodore Ts'o <tytso@mit.edu>2009-01-03 09:47:09 -0500
commit87d8fe1ee6b8d2f95076142d58c440dba4e7bdc2 (patch)
tree8c91506978a16c22268b086f693e307de0ca57db /include/linux/fs.h
parent0087d9fb3f29f59e8d42c8b058376d80e5adde4c (diff)
add releasepage hooks to block devices which can be used by file systems
Implement blkdev_releasepage() to release the buffer_heads and pages after we release private data belonging to a mounted filesystem. Cc: Toshiyuki Okajima <toshi.okajima@jp.fujitsu.com> Cc: linux-fsdevel@vger.kernel.org Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Diffstat (limited to 'include/linux/fs.h')
-rw-r--r--include/linux/fs.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/fs.h b/include/linux/fs.h
index f2a3010140e3..0f54ae0f0ccd 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -565,6 +565,7 @@ struct address_space {
struct block_device {
dev_t bd_dev; /* not a kdev_t - it's a search key */
struct inode * bd_inode; /* will die */
+ struct super_block * bd_super;
int bd_openers;
struct mutex bd_mutex; /* open/close mutex */
struct semaphore bd_mount_sem;
@@ -1385,6 +1386,7 @@ struct super_operations {
ssize_t (*quota_read)(struct super_block *, int, char *, size_t, loff_t);
ssize_t (*quota_write)(struct super_block *, int, const char *, size_t, loff_t);
#endif
+ int (*bdev_try_to_free_page)(struct super_block*, struct page*, gfp_t);
};
/*