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authorSteve French <stfrench@microsoft.com>2019-07-16 18:55:38 -0500
committerSteve French <stfrench@microsoft.com>2019-11-25 01:14:14 -0600
commitd0677992d2af3d65f1c1c21de3323d09d4891537 (patch)
tree77c2daf3008dd03a3b0f8af179119cb26dc1f5ec /fs/cifs/cifsfs.c
parentbe1bf978e5d7cf26a78091ce1dd7c77ac64a658f (diff)
downloadlinux-d0677992d2af3d65f1c1c21de3323d09d4891537.tar.bz2
cifs: add support for flock
The flock system call locks the whole file rather than a byte range and so is currently emulated by various other file systems by simply sending a byte range lock for the whole file. Add flock handling for cifs.ko in similar way. xfstest generic/504 passes with this as well Signed-off-by: Steve French <stfrench@microsoft.com> Reviewed-by: Pavel Shilovsky <pshilov@microsoft.com> Reviewed-by: Ronnie Sahlberg <lsahlber@redhat.com>
Diffstat (limited to 'fs/cifs/cifsfs.c')
-rw-r--r--fs/cifs/cifsfs.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index 1a135d1b85bd..e4e3b573d20c 100644
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -1219,6 +1219,7 @@ const struct file_operations cifs_file_ops = {
.open = cifs_open,
.release = cifs_close,
.lock = cifs_lock,
+ .flock = cifs_flock,
.fsync = cifs_fsync,
.flush = cifs_flush,
.mmap = cifs_file_mmap,
@@ -1238,6 +1239,7 @@ const struct file_operations cifs_file_strict_ops = {
.open = cifs_open,
.release = cifs_close,
.lock = cifs_lock,
+ .flock = cifs_flock,
.fsync = cifs_strict_fsync,
.flush = cifs_flush,
.mmap = cifs_file_strict_mmap,
@@ -1257,6 +1259,7 @@ const struct file_operations cifs_file_direct_ops = {
.open = cifs_open,
.release = cifs_close,
.lock = cifs_lock,
+ .flock = cifs_flock,
.fsync = cifs_fsync,
.flush = cifs_flush,
.mmap = cifs_file_mmap,