Al Viro 076e4ab327 don't put symlink bodies in pagecache into highmem ...

commit 21fc61c73c upstream.

kmap() in page_follow_link_light() needed to go - allowing to hold
an arbitrary number of kmaps for long is a great way to deadlocking
the system.

new helper (inode_nohighmem(inode)) needs to be used for pagecache
symlinks inodes; done for all in-tree cases.  page_follow_link_light()
instrumented to yell about anything missed.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Jin Qian <jinqian@google.com>
Signed-off-by: Jin Qian <jinqian@android.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2018-02-16 20:09:38 +01:00

..

acl.c

f2fs: Don't clear SGID when inheriting ACLs

2017-07-27 15:06:07 -07:00

acl.h

…

checkpoint.c

…

crypto_fname.c

f2fs crypto: replace some BUG_ON()'s with error checks

2017-10-27 10:23:18 +02:00

crypto_key.c

fscrypt: fix dereference of NULL user_key_payload

2017-10-27 10:23:18 +02:00

crypto_policy.c

fscrypt: fix context consistency check when key(s) unavailable

2017-05-25 14:30:11 +02:00

crypto.c

f2fs crypto: replace some BUG_ON()'s with error checks

2017-10-27 10:23:18 +02:00

data.c

f2fs: do not wait for writeback in write_begin

2017-10-21 17:09:05 +02:00

debug.c

…

dir.c

fscrypt: avoid collisions when presenting long encrypted filenames

2017-05-25 14:30:11 +02:00

extent_cache.c

…

f2fs_crypto.h

…

f2fs.h

f2fs: check entire encrypted bigname when finding a dentry

2017-05-25 14:30:11 +02:00

file.c

fscrypto: require write access to mount to set encryption policy

2017-10-27 10:23:18 +02:00

gc.c

…

gc.h

…

hash.c

f2fs: check entire encrypted bigname when finding a dentry

2017-05-25 14:30:11 +02:00

inline.c

f2fs: check entire encrypted bigname when finding a dentry

2017-05-25 14:30:11 +02:00

inode.c

don't put symlink bodies in pagecache into highmem

2018-02-16 20:09:38 +01:00

Kconfig

…

Makefile

…

namei.c

don't put symlink bodies in pagecache into highmem

2018-02-16 20:09:38 +01:00

node.c

…

node.h

…

recovery.c

f2fs: check hot_data for roll-forward recovery

2017-09-27 11:00:12 +02:00

segment.c

…

segment.h

…

shrinker.c

…

super.c

f2fs: sanity check checkpoint segno and blkoff

2017-08-11 09:08:51 -07:00

trace.c

…

trace.h

…

xattr.c

…

xattr.h

…