linux-kernel - [PATCH] staging: exfat: use bdev_sync function directly where needed

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Date:   Wed, 2 Oct 2019 20:47:03 +0530
From:   Saiyam Doshi <saiyamdoshi.in@...il.com>
To:     valdis.kletnieks@...edu, gregkh@...uxfoundation.org
Cc:     devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org
Subject: [PATCH] staging: exfat: use bdev_sync function directly where needed

fs_sync() is wrapper to bdev_sync(). When fs_sync is called with
non-zero argument, bdev_sync gets called.

Most instances of fs_sync is called with false and very few with
true. Refactor this and makes direct call to bdev_sync() where
needed and removes fs_sync definition.

Signed-off-by: Saiyam Doshi <saiyamdoshi.in@...il.com>
---
 drivers/staging/exfat/exfat_super.c | 19 +++----------------
 1 file changed, 3 insertions(+), 16 deletions(-)

diff --git a/drivers/staging/exfat/exfat_super.c b/drivers/staging/exfat/exfat_super.c
index 229ecabe7a93..3d3b0f0eebdc 100644
--- a/drivers/staging/exfat/exfat_super.c
+++ b/drivers/staging/exfat/exfat_super.c
@@ -285,12 +285,6 @@ static const struct dentry_operations exfat_dentry_ops = {
 
 static DEFINE_SEMAPHORE(z_sem);
 
-static inline void fs_sync(struct super_block *sb, bool do_sync)
-{
-	if (do_sync)
-		bdev_sync(sb);
-}
-
 /*
  * If ->i_mode can't hold S_IWUGO (i.e. ATTR_RO), we use ->i_attrs to
  * save ATTR_RO instead of ->i_mode.
@@ -458,7 +452,6 @@ static int ffsUmountVol(struct super_block *sb)
 	/* acquire the lock for file system critical section */
 	down(&p_fs->v_sem);
 
-	fs_sync(sb, false);
 	fs_set_vol_flags(sb, VOL_CLEAN);
 
 	if (p_fs->vol_type == EXFAT) {
@@ -527,7 +520,9 @@ static int ffsSyncVol(struct super_block *sb, bool do_sync)
 	down(&p_fs->v_sem);
 
 	/* synchronize the file system */
-	fs_sync(sb, do_sync);
+	if (do_sync)
+		bdev_sync(sb);
+
 	fs_set_vol_flags(sb, VOL_CLEAN);
 
 	if (p_fs->dev_ejected)
@@ -667,7 +662,6 @@ static int ffsCreateFile(struct inode *inode, char *path, u8 mode,
 	ret = create_file(inode, &dir, &uni_name, mode, fid);
 
 #ifdef CONFIG_EXFAT_DELAYED_SYNC
-	fs_sync(sb, false);
 	fs_set_vol_flags(sb, VOL_CLEAN);
 #endif
 
@@ -1040,7 +1034,6 @@ static int ffsWriteFile(struct inode *inode, struct file_id_t *fid,
 	}
 
 #ifdef CONFIG_EXFAT_DELAYED_SYNC
-	fs_sync(sb, false);
 	fs_set_vol_flags(sb, VOL_CLEAN);
 #endif
 
@@ -1180,7 +1173,6 @@ static int ffsTruncateFile(struct inode *inode, u64 old_size, u64 new_size)
 		fid->rwoffset = fid->size;
 
 #ifdef CONFIG_EXFAT_DELAYED_SYNC
-	fs_sync(sb, false);
 	fs_set_vol_flags(sb, VOL_CLEAN);
 #endif
 
@@ -1328,7 +1320,6 @@ static int ffsMoveFile(struct inode *old_parent_inode, struct file_id_t *fid,
 	}
 out:
 #ifdef CONFIG_EXFAT_DELAYED_SYNC
-	fs_sync(sb, false);
 	fs_set_vol_flags(sb, VOL_CLEAN);
 #endif
 
@@ -1390,7 +1381,6 @@ static int ffsRemoveFile(struct inode *inode, struct file_id_t *fid)
 	fid->flags = (p_fs->vol_type == EXFAT) ? 0x03 : 0x01;
 
 #ifdef CONFIG_EXFAT_DELAYED_SYNC
-	fs_sync(sb, false);
 	fs_set_vol_flags(sb, VOL_CLEAN);
 #endif
 
@@ -1479,7 +1469,6 @@ static int ffsSetAttr(struct inode *inode, u32 attr)
 	}
 
 #ifdef CONFIG_EXFAT_DELAYED_SYNC
-	fs_sync(sb, false);
 	fs_set_vol_flags(sb, VOL_CLEAN);
 #endif
 
@@ -1917,7 +1906,6 @@ static int ffsCreateDir(struct inode *inode, char *path, struct file_id_t *fid)
 	ret = create_dir(inode, &dir, &uni_name, fid);
 
 #ifdef CONFIG_EXFAT_DELAYED_SYNC
-	fs_sync(sb, false);
 	fs_set_vol_flags(sb, VOL_CLEAN);
 #endif
 
@@ -2178,7 +2166,6 @@ static int ffsRemoveDir(struct inode *inode, struct file_id_t *fid)
 	fid->flags = (p_fs->vol_type == EXFAT) ? 0x03 : 0x01;
 
 #ifdef CONFIG_EXFAT_DELAYED_SYNC
-	fs_sync(sb, false);
 	fs_set_vol_flags(sb, VOL_CLEAN);
 #endif
 
-- 
2.20.1