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authorJeff Layton <jlayton@kernel.org>2019-04-08 17:59:42 +0300
committerSteve French <stfrench@microsoft.com>2019-05-08 07:24:55 +0300
commit0ae3fa4dc1fcb94b2e992b222dc47781b0414076 (patch)
treec1f33e27660b7bf1c987716a6475057c57a03b7b /fs/cifs/file.c
parent214bab448476dbfb63f55f5afaa93d3894d85233 (diff)
downloadlinux-0ae3fa4dc1fcb94b2e992b222dc47781b0414076.tar.xz
cifs: remove superfluous inode_lock in cifs_{strict_}fsync
Originally, filemap_write_and_wait took the i_mutex internally, but commit 02c24a82187d pushed the mutex acquisition into the individual fsync routines, leaving it up to the subsystem maintainers to remove it if it wasn't needed. For cifs, I see no reason to take the inode_lock here. All of the operations inside that lock are protected in other ways. Signed-off-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Steve French <stfrench@microsoft.com> Acked-by: Pavel Shilovsky <pshilov@microsoft.com>
Diffstat (limited to 'fs/cifs/file.c')
-rw-r--r--fs/cifs/file.c5
1 files changed, 0 insertions, 5 deletions
diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index 7037a137fa53..ce9a5be11df5 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -2443,7 +2443,6 @@ int cifs_strict_fsync(struct file *file, loff_t start, loff_t end,
rc = file_write_and_wait_range(file, start, end);
if (rc)
return rc;
- inode_lock(inode);
xid = get_xid();
@@ -2468,7 +2467,6 @@ int cifs_strict_fsync(struct file *file, loff_t start, loff_t end,
}
free_xid(xid);
- inode_unlock(inode);
return rc;
}
@@ -2480,12 +2478,10 @@ int cifs_fsync(struct file *file, loff_t start, loff_t end, int datasync)
struct TCP_Server_Info *server;
struct cifsFileInfo *smbfile = file->private_data;
struct cifs_sb_info *cifs_sb = CIFS_FILE_SB(file);
- struct inode *inode = file->f_mapping->host;
rc = file_write_and_wait_range(file, start, end);
if (rc)
return rc;
- inode_lock(inode);
xid = get_xid();
@@ -2502,7 +2498,6 @@ int cifs_fsync(struct file *file, loff_t start, loff_t end, int datasync)
}
free_xid(xid);
- inode_unlock(inode);
return rc;
}