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authorEric Van Hensbergen <ericvh@kernel.org>2023-04-26 19:18:49 +0300
committerEric Van Hensbergen <ericvh@kernel.org>2023-04-28 19:59:26 +0300
commit21e26d5e54ab7cfe6b488fd27d4d70956d07e03b (patch)
treefda636c1f4fcf61a8f31ea81684c3fb25b69deee /fs/9p
parent4eb3117888a923f6b9b1ad2dd093641c49a63ae5 (diff)
downloadlinux-21e26d5e54ab7cfe6b488fd27d4d70956d07e03b.tar.xz
fs/9p: Fix bit operation logic error
This re-introduces a fix that somehow got dropped during rebase of the current series in for-next. When writeback is enabled, opens are forced to support both read and write operations but with the logic error other flags may be dropped unintentionaly. Reported-by: Christophe Jaillet <christophe.jaillet@wanadoo.fr> Signed-off-by: Eric Van Hensbergen <ericvh@kernel.org>
Diffstat (limited to 'fs/9p')
-rw-r--r--fs/9p/vfs_inode.c2
-rw-r--r--fs/9p/vfs_inode_dotl.c2
2 files changed, 2 insertions, 2 deletions
diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c
index 54dfe4f10f43..3791f642c502 100644
--- a/fs/9p/vfs_inode.c
+++ b/fs/9p/vfs_inode.c
@@ -823,7 +823,7 @@ v9fs_vfs_atomic_open(struct inode *dir, struct dentry *dentry,
p9_omode = v9fs_uflags2omode(flags, v9fs_proto_dotu(v9ses));
if ((v9ses->cache & CACHE_WRITEBACK) && (p9_omode & P9_OWRITE)) {
- p9_omode = (p9_omode & !P9_OWRITE) | P9_ORDWR;
+ p9_omode = (p9_omode & ~P9_OWRITE) | P9_ORDWR;
p9_debug(P9_DEBUG_CACHE,
"write-only file with writeback enabled, creating w/ O_RDWR\n");
}
diff --git a/fs/9p/vfs_inode_dotl.c b/fs/9p/vfs_inode_dotl.c
index f9371b5b70ea..3acf2bcb69cc 100644
--- a/fs/9p/vfs_inode_dotl.c
+++ b/fs/9p/vfs_inode_dotl.c
@@ -288,7 +288,7 @@ v9fs_vfs_atomic_open_dotl(struct inode *dir, struct dentry *dentry,
}
if ((v9ses->cache & CACHE_WRITEBACK) && (p9_omode & P9_OWRITE)) {
- p9_omode = (p9_omode & !P9_OWRITE) | P9_ORDWR;
+ p9_omode = (p9_omode & ~P9_OWRITE) | P9_ORDWR;
p9_debug(P9_DEBUG_CACHE,
"write-only file with writeback enabled, creating w/ O_RDWR\n");
}