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cifs: Add support for root file systems

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Introduce a new CONFIG_CIFS_ROOT option to handle root file systems
over a SMB share.

In order to mount the root file system during the init process, make
cifs.ko perform non-blocking socket operations while mounting and
accessing it.

Cc: Steve French <smfrench@gmail.com>
Reviewed-by: Aurelien Aptel <aaptel@suse.com>
Signed-off-by: Paulo Alcantara (SUSE) <paulo@paulo.ac>
Signed-off-by: Steve French <stfrench@microsoft.com>
This commit is contained in:
Paulo Alcantara (SUSE)
2019-07-16 19:04:50 -03:00
committed by Steve French
parent 0892ba693f
commit 8eecd1c2e5
7 changed files with 207 additions and 3 deletions
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1
include/linux/root_dev.h
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@@ -8,6 +8,7 @@
enum {
Root_NFS = MKDEV(UNNAMED_MAJOR, 255),
Root_CIFS = MKDEV(UNNAMED_MAJOR, 254),
Root_RAM0 = MKDEV(RAMDISK_MAJOR, 0),
Root_RAM1 = MKDEV(RAMDISK_MAJOR, 1),
Root_FD0 = MKDEV(FLOPPY_MAJOR, 0),