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Paolo 'Blaisorblade' Giarrusso 1e40cd383c [PATCH] uml: fixes performance regression in activate_mm and thus exec() ... Normally, activate_mm() is called from exec(), and thus it used to be a no-op because we use a completely new "MM context" on the host (for instance, a new process), and so we didn't need to flush any "TLB entries" (which for us are the set of memory mappings for the host process from the virtual "RAM" file). Kernel threads, instead, are usually handled in a different way. So, when for AIO we call use_mm(), things used to break and so Benjamin implemented activate_mm(). However, that is only needed for AIO, and could slow down exec() inside UML, so be smart: detect being called for AIO (via PF_BORROWED_MM) and do the full flush only in that situation. Comment also the caller so that people won't go breaking UML without noticing. I also rely on the caller's locks for testing current->flags. Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> CC: Benjamin LaHaise <bcrl@kvack.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>		20 years ago
..
adfs	[ARM] fs/adfs/adfs.h: "extern inline" doesn't make sense	20 years ago
affs	…
afs	[PATCH] Fix up symlink function pointers	20 years ago
autofs	Fix nasty ncpfs symlink handling bug.	20 years ago
autofs4	[PATCH] Fix up symlink function pointers	20 years ago
befs	befs: fix up missed follow_link declaration change	20 years ago
bfs	…
cifs	[PATCH] Fix oops in fs/locks.c on close of file with pending locks	20 years ago
coda	…
cramfs	…
debugfs	…
devfs	[PATCH] Fix up symlink function pointers	20 years ago
devpts	[PATCH] Generic VFS fallback for security xattrs	20 years ago
efs	…
exportfs	…
ext2	Fix nasty ncpfs symlink handling bug.	20 years ago
ext3	Fix nasty ncpfs symlink handling bug.	20 years ago
fat	[PATCH] fatfs sectioning fix	20 years ago
freevxfs	[PATCH] freevxfs: fix breakage introduced by symlink fixes	20 years ago
hfs	[PATCH] hfs: don't reference missing page	20 years ago
hfsplus	[PATCH] hfs: don't reference missing page	20 years ago
hostfs	[PATCH] uml: implement hostfs syncing	20 years ago
hpfs	…
hppfs	[PATCH] hppfs: fix symlink error path	20 years ago
hugetlbfs	…
isofs	Check input buffer size in zisofs	20 years ago
jbd	[PATCH] Cleanup patch for process freezing	20 years ago
jffs	[PATCH] Fix missing refrigerator invocation in jffs2	20 years ago
jffs2	[PATCH] Fix up symlink function pointers	20 years ago
jfs	Merge refs/heads/for-linus from master.kernel.org:/pub/scm/linux/kernel/git/shaggy/jfs-2.6.git	20 years ago
lockd	[PATCH] NFS: procfs/sysctl interfaces for lockd do not work on x86_64	20 years ago
minix	…
msdos	…
ncpfs	[PATCH] fs/ncpfs/: remove unused #ifdef USE_OLD_SLOW_DIRECTORY_LISTING code	20 years ago
nfs	[PATCH] NFSv4: unbalanced BKL in nfs_atomic_lookup()	20 years ago
nfs_common	[PATCH] NFS: Ensure ACL xdr code doesn't overflow.	20 years ago
nfsd	[PATCH] nfsd to unlock kernel before exiting	20 years ago
nls	…
ntfs	NTFS: Complete the previous fix for the unset device when mapping buffers	20 years ago
openpromfs	…
partitions	[PATCH] small partitions/msdos cleanups	20 years ago
proc	[PATCH] add /proc/pid/smaps	20 years ago
qnx4	[PATCH] fs/qnx4/*: fix sparse warnings	20 years ago
ramfs	…
reiserfs	[PATCH] reiserfs+acl+quota deadlock fix	20 years ago
romfs	…
smbfs	[TCP]: Move the tcp sock states to net/tcp_states.h	20 years ago
sysfs	[PATCH] Fix oops in sysfs_hash_and_remove_file()	20 years ago
sysv	[PATCH] Fix up symlink function pointers	20 years ago
udf	[PATCH] udf_find_entry() cleanup	20 years ago
ufs	[PATCH] Fix up symlink function pointers	20 years ago
umsdos	…
vfat	…
xfs	[PATCH] Fix up symlink function pointers	20 years ago
Kconfig	[PATCH] Generic VFS fallback for security xattrs	20 years ago
Kconfig.binfmt	…
Makefile	[PATCH] inotify	20 years ago
aio.c	[PATCH] uml: fixes performance regression in activate_mm and thus exec()	20 years ago
attr.c	[PATCH] inotify	20 years ago
bad_inode.c	…
binfmt_aout.c	…
binfmt_elf.c	…
binfmt_elf_fdpic.c	…
binfmt_em86.c	…
binfmt_flat.c	[PATCH] uclinux: use MAP_PRIVATE when mmaping code regions in flat binary loader	20 years ago
binfmt_misc.c	…
binfmt_script.c	…
binfmt_som.c	…
bio.c	[PATCH] __bio_clone() dead comment	20 years ago
block_dev.c	…
buffer.c	[PATCH] page_uptodate locking scalability	20 years ago
char_dev.c	[PATCH] cdev: cdev_put oops	20 years ago
compat.c	[PATCH] inotify	20 years ago
compat_ioctl.c	…
dcache.c	[PATCH] fsnotify_name/inoderemove	20 years ago
dcookies.c	[PATCH] dcookies.c: use proper refcounting functions	20 years ago
direct-io.c	…
dnotify.c	…
dquot.c	[PATCH] list_for_each_entry: fs-dquot.c	20 years ago
eventpoll.c	…
exec.c	[PATCH] reset real_timer target on exec leader change	20 years ago
fcntl.c	[PATCH] stale POSIX lock handling	20 years ago
fifo.c	…
file.c	…
file_table.c	[PATCH] inotify	20 years ago
filesystems.c	…
fs-writeback.c	…
inode.c	[PATCH] Fix soft lockup due to NTFS: VFS part and explanation	20 years ago
inotify.c	[PATCH] Document idr_get_new_above() semantics, update inotify	20 years ago
ioctl.c	…
ioprio.c	Don't allow normal users to set idle IO priority	20 years ago
libfs.c	[PATCH] fix fsync(dir) return value for ram-based filesystems	20 years ago
locks.c	[PATCH] stale POSIX lock handling	20 years ago
mbcache.c	[PATCH] mbcache: Remove unused mb_cache_shrink parameter	20 years ago
mpage.c	…
namei.c	Fix nasty ncpfs symlink handling bug.	20 years ago
namespace.c	[PATCH] namespace.c: fix bind mount from foreign namespace	20 years ago
nfsctl.c	…
open.c	[PATCH] inotify	20 years ago
pipe.c	…
posix_acl.c	…
quota.c	…
quota_v1.c	…
quota_v2.c	…
read_write.c	[PATCH] inotify	20 years ago
readdir.c	…
select.c	…
seq_file.c	…
stat.c	…
super.c	[PATCH] set mnt_namespace in the correct place	20 years ago
xattr.c	[PATCH] Generic VFS fallback for security xattrs	20 years ago
xattr_acl.c	…