Commit f6c05b9e authored by Amir Goldstein's avatar Amir Goldstein Committed by Christian Brauner
Browse files

fs: add kerneldoc to file_{start,end}_write() helpers 



and use sb_end_write() instead of open coded version.

Signed-off-by: default avatarAmir Goldstein <amir73il@gmail.com>
Reviewed-by: default avatarJan Kara <jack@suse.cz>
Reviewed-by: default avatarJens Axboe <axboe@kernel.dk>
Message-Id: <20230817141337.1025891-3-amir73il@gmail.com>
Signed-off-by: default avatarChristian Brauner <brauner@kernel.org>
parent a370167f

include/linux/fs.h

+14 −1
Original line number Diff line number Diff line
@@ -2539,6 +2539,13 @@ static inline bool inode_wrong_type(const struct inode *inode, umode_t mode) 
	return (inode->i_mode ^ mode) & S_IFMT;

}



/**

 * file_start_write - get write access to a superblock for regular file io

 * @file: the file we want to write to

 *

 * This is a variant of sb_start_write() which is a noop on non-regualr file.

 * Should be matched with a call to file_end_write().

 */

static inline void file_start_write(struct file *file)

{

	if (!S_ISREG(file_inode(file)->i_mode))
@@ -2553,11 +2560,17 @@ static inline bool file_start_write_trylock(struct file *file) 
	return sb_start_write_trylock(file_inode(file)->i_sb);

}



/**

 * file_end_write - drop write access to a superblock of a regular file

 * @file: the file we wrote to

 *

 * Should be matched with a call to file_start_write().

 */

static inline void file_end_write(struct file *file)

{

	if (!S_ISREG(file_inode(file)->i_mode))

		return;

	__sb_end_write(file_inode(file)->i_sb, SB_FREEZE_WRITE);

	sb_end_write(file_inode(file)->i_sb);

}



/*