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cifs: Improve guard for excluding $LXDEV xattr

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$LXDEV xattr is for storing block/char device's major and minor number.
Change guard which excludes storing $LXDEV xattr to explicitly filter
everything except block and char device. Current guard is opposite, which
is currently correct but is less-safe. This change is required for adding
support for creating WSL-style symlinks as symlinks also do not use
device's major and minor numbers.

Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
This commit is contained in:
Pali Rohár 2024-09-12 15:06:22 +02:00 committed by Steve French
parent 06a7adf318
commit d3d797e326
1 changed files with 2 additions and 2 deletions
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4
fs/smb/client/reparse.c
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@ -378,8 +378,8 @@ static int wsl_set_xattrs(struct inode *inode, umode_t _mode,
memset(iov, 0, sizeof(*iov));
/* Exclude $LXDEV xattr for sockets and fifos */
if (S_ISSOCK(_mode) || S_ISFIFO(_mode))
/* Exclude $LXDEV xattr for non-device files */
if (!S_ISBLK(_mode) && !S_ISCHR(_mode))
num_xattrs = ARRAY_SIZE(xattrs) - 1;
else
num_xattrs = ARRAY_SIZE(xattrs);