![]() This patch is a preparation necessary to remove the BKL from do_new_mount(). It explicitly adds calls to lock_kernel()/unlock_kernel() around get_sb/fill_super operations for filesystems that still uses the BKL. I've read through all the code formerly covered by the BKL inside do_kern_mount() and have satisfied myself that it doesn't need the BKL any more. do_kern_mount() is already called without the BKL when mounting the rootfs and in nfsctl. do_kern_mount() calls vfs_kern_mount(), which is called from various places without BKL: simple_pin_fs(), nfs_do_clone_mount() through nfs_follow_mountpoint(), afs_mntpt_do_automount() through afs_mntpt_follow_link(). Both later functions are actually the filesystems follow_link inode operation. vfs_kern_mount() is calling the specified get_sb function and lets the filesystem do its job by calling the given fill_super function. Therefore I think it is safe to push down the BKL from the VFS to the low-level filesystems get_sb/fill_super operation. [arnd: do not add the BKL to those file systems that already don't use it elsewhere] Signed-off-by: Jan Blunck <jblunck@infradead.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: Matthew Wilcox <matthew@wil.cx> Cc: Christoph Hellwig <hch@infradead.org> |
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.. | ||
aops.c | ||
aops.h | ||
attrib.c | ||
attrib.h | ||
bitmap.c | ||
bitmap.h | ||
collate.c | ||
collate.h | ||
compress.c | ||
debug.c | ||
debug.h | ||
dir.c | ||
dir.h | ||
endian.h | ||
file.c | ||
index.c | ||
index.h | ||
inode.c | ||
inode.h | ||
Kconfig | ||
layout.h | ||
lcnalloc.c | ||
lcnalloc.h | ||
logfile.c | ||
logfile.h | ||
Makefile | ||
malloc.h | ||
mft.c | ||
mft.h | ||
mst.c | ||
namei.c | ||
ntfs.h | ||
quota.c | ||
quota.h | ||
runlist.c | ||
runlist.h | ||
super.c | ||
sysctl.c | ||
sysctl.h | ||
time.h | ||
types.h | ||
unistr.c | ||
upcase.c | ||
usnjrnl.c | ||
usnjrnl.h | ||
volume.h |