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SMB3: Don't ignore O_SYNC/O_DSYNC and O_DIRECT flags

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commit 1013e760d10e614dc10b5624ce9fc41563ba2e65 upstream.

Signed-off-by: Steve French <smfrench@gmail.com>
Reviewed-by: Ronnie Sahlberg <lsahlber@redhat.com>
Reviewed-by: Pavel Shilovsky <pshilov@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Steve French 2017-09-22 01:40:27 -05:00 committed by Greg Kroah-Hartman
parent 02ef29f9cb
commit 3bb7084cc0
1 changed files with 7 additions and 0 deletions
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7
fs/cifs/file.c
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@ -224,6 +224,13 @@ cifs_nt_open(char *full_path, struct inode *inode, struct cifs_sb_info *cifs_sb,
if (backup_cred(cifs_sb))
create_options |= CREATE_OPEN_BACKUP_INTENT;
/* O_SYNC also has bit for O_DSYNC so following check picks up either */
if (f_flags & O_SYNC)
create_options |= CREATE_WRITE_THROUGH;
if (f_flags & O_DIRECT)
create_options |= CREATE_NO_BUFFER;
oparms.tcon = tcon;
oparms.cifs_sb = cifs_sb;
oparms.desired_access = desired_access;