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linux/fs
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Neil Brown 9f708e40fe [PATCH] knfsd: reduce stack consumption 
A typical nfsd call trace is
 nfsd -> svc_process -> nfsd_dispatch -> nfsd3_proc_write ->
   nfsd_write ->nfsd_vfs_write -> vfs_writev

These add up to over 300 bytes on the stack.
Looking at each of these, I see that nfsd_write (which includes
 nfsd_vfs_write) contributes 0x8c to stack usage itself!!

It turns out this is because it puts a 'struct iattr' on the stack so
it can kill suid if needed.  The following patch saves about 50 bytes
off the stack in this call path.

Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-06 08:33:59 -08:00
..
9p [INET_SOCK]: Move struct inet_sock & helper functions to net/inet_sock.h 2006-01-03 13:11:21 -08:00
adfs [PATCH] changing CONFIG_LOCALVERSION rebuilds too much, for no good reason 2005-11-09 07:55:57 -08:00
affs [PATCH] kfree cleanup: fs 2005-11-07 07:54:06 -08:00
afs fs/afs/callback.c should #include "cmservice.h" 2005-11-08 16:56:17 +01:00
autofs [PATCH] kfree cleanup: fs 2005-11-07 07:54:06 -08:00
autofs4 [PATCH] kfree cleanup: fs 2005-11-07 07:54:06 -08:00
befs remove unused fs/befs/attribute.c 2005-11-08 16:54:53 +01:00
bfs
cifs [CIFS] For previous fix, mode on mkdir needed S_IFDIR left out. 2005-11-29 22:38:43 -08:00
coda [PATCH] Driver Core: fix up all callers of class_device_create() 2005-10-28 09:52:52 -07:00
configfs [PATCH] configfs: User-driven configuration filesystem 2006-01-03 11:45:28 -08:00
cramfs
debugfs
devfs [PATCH] kfree cleanup: fs 2005-11-07 07:54:06 -08:00
devpts
efs
exportfs
ext2 [PATCH] ext2: remove duplicate newlines in ext2_fill_super 2005-11-13 18:14:17 -08:00
ext3 [PATCH] ext3: Wrong return value for EXT3_IOC_GROUP_ADD 2005-11-28 14:42:24 -08:00
fat [PATCH] fat: respect silent mount flag 2005-11-09 07:55:58 -08:00
freevxfs fs/freevxfs/: add #include's 2005-11-08 16:47:45 +01:00
fuse [PATCH] fuse: check file type in lookup 2006-01-06 08:33:56 -08:00
hfs [PATCH] changing CONFIG_LOCALVERSION rebuilds too much, for no good reason 2005-11-09 07:55:57 -08:00
hfsplus [PATCH] hfsplus oops fix 2006-01-06 08:33:20 -08:00
hostfs [PATCH] uml: hostfs - fix possible PAGE_CACHE_SHIFT overflows 2005-12-29 09:48:15 -08:00
hpfs [PATCH] hpfs: remove spurious mtime update 2005-11-09 07:55:57 -08:00
hppfs
hugetlbfs [PATCH] Hugetlb: Copy on Write support 2006-01-06 08:33:23 -08:00
isofs [PATCH] kfree cleanup: fs 2005-11-07 07:54:06 -08:00
jbd [PATCH] jbd: split checkpoint lists 2006-01-06 08:33:59 -08:00
jffs jffs_fm.c should #include "intrep.h" 2005-11-08 16:48:36 +01:00
jffs2 [JFFS2] Fix the slab cache constructor of 'struct jffs2_inode_info' objects. 2005-11-29 16:57:17 +01:00
jfs JFS: set i_ctime & i_mtime on target directory when creating links 2005-10-31 16:53:04 -06:00
lockd NLM: Fix Oops in nlmclnt_mark_reclaim() 2005-12-19 23:12:31 -05:00
minix
msdos [PATCH] fat: remove the unneeded vfat_find() in vfat_rename() 2005-10-30 17:37:32 -08:00
ncpfs [PATCH] add a file_permission helper 2005-11-09 07:55:59 -08:00
nfs [INET_SOCK]: Move struct inet_sock & helper functions to net/inet_sock.h 2006-01-03 13:11:21 -08:00
nfs_common [PATCH] nfsacl: Solaris VxFS compatibility fix 2005-10-11 09:46:54 -07:00
nfsd [PATCH] knfsd: reduce stack consumption 2006-01-06 08:33:59 -08:00
nls
ntfs update the email address of Randy Dunlap 2006-01-03 13:37:51 +01:00
ocfs2 [PATCH] This patch contains the following cleanups: 2006-01-03 11:45:55 -08:00
openpromfs [PATCH] kfree cleanup: fs 2005-11-07 07:54:06 -08:00
partitions [PATCH] s390: cleanup Kconfig 2006-01-06 08:33:53 -08:00
proc [PATCH] s390: cleanup Kconfig 2006-01-06 08:33:53 -08:00
qnx4 fs/qnx4/bitmap.c: #if 0 qnx4_new_block() 2006-01-03 13:21:37 +01:00
ramfs [PATCH] NOMMU: Provide shared-writable mmap support on ramfs 2006-01-06 08:33:32 -08:00
reiserfs s/retreiv/retriev/g 2006-01-03 13:27:11 +01:00
relayfs [PATCH] relayfs: remove warning printk() in relay_switch_subbuf() 2005-12-20 17:33:22 -08:00
romfs
smbfs [PATCH] smbfs: 'names_cache' memory leak 2005-11-07 07:53:39 -08:00
sysfs [PATCH] sysfs: handle failures in sysfs_make_dirent 2006-01-04 16:18:09 -08:00
sysv
udf remove pointers to the defunct UDF mailing list 2006-01-03 13:19:13 +01:00
ufs [PATCH] kfree cleanup: fs 2005-11-07 07:54:06 -08:00
vfat [PATCH] fat: remove the unneeded vfat_find() in vfat_rename() 2005-10-30 17:37:32 -08:00
xfs [PATCH] xfs: missing gfp_t annotations 2005-12-15 10:04:29 -08:00
aio.c [PATCH] aio: replace locking comments with assert_spin_locked() 2005-11-13 18:14:16 -08:00
attr.c [PATCH] fs/attr.c: remove BUG() 2005-10-30 17:37:27 -08:00
bad_inode.c
binfmt_aout.c [PATCH] mm: mm_init set_mm_counters 2005-10-29 21:40:38 -07:00
binfmt_elf_fdpic.c [PATCH] kfree cleanup: fs 2005-11-07 07:54:06 -08:00
binfmt_elf.c [PATCH] kfree cleanup: fs 2005-11-07 07:54:06 -08:00
binfmt_em86.c
binfmt_flat.c [PATCH] mm: mm_init set_mm_counters 2005-10-29 21:40:38 -07:00
binfmt_misc.c [PATCH] add a file_permission helper 2005-11-09 07:55:59 -08:00
binfmt_script.c
binfmt_som.c [PATCH] mm: mm_init set_mm_counters 2005-10-29 21:40:38 -07:00
bio.c [SCSI] seperate max_sectors from max_hw_sectors 2005-12-15 15:11:40 -08:00
block_dev.c
buffer.c [PATCH] __find_get_block_slow() cleanup 2005-11-07 07:53:39 -08:00
char_dev.c
compat_ioctl.c [COMPAT] net: SIOCGIFCONF data corruption 2005-11-20 13:41:59 -08:00
compat.c Relax the rw_verify_area() error checking. 2006-01-04 16:20:40 -08:00
dcache.c [PATCH] Remove hlist_for_each_rcu() API, convert existing use to hlist_for_each_entry_rcu 2005-11-07 07:53:35 -08:00
dcookies.c
direct-io.c [PATCH] core remove PageReserved 2005-10-29 21:40:39 -07:00
dnotify.c
dquot.c [PATCH] Fix oops in vfs_quotaon_mount() 2005-11-28 14:42:26 -08:00
eventpoll.c
exec.c [PATCH] mm: rmap optimisation 2006-01-06 08:33:27 -08:00
fcntl.c
fifo.c
file_table.c [PATCH] mm: rename kmem_cache_s to kmem_cache 2005-11-07 07:53:24 -08:00
file.c
filesystems.c [PATCH] fix missing includes 2005-10-30 17:37:32 -08:00
fs-writeback.c [PATCH] kernel-docs: fix kernel-doc format problems 2005-11-07 07:53:55 -08:00
inode.c [PATCH] fix nr_unused accounting, and avoid recursing in iput with I_WILL_FREE set 2005-10-30 17:37:26 -08:00
inotify.c [PATCH] inotify: add two inotify_add_watch flags 2005-12-12 08:57:43 -08:00
ioctl.c
ioprio.c fs/ioprio.c should #include <linux/syscalls.h> 2005-11-08 16:57:02 +01:00
Kconfig [PATCH] o Update Kconfig documentation to reflect support for readonly mounts. 2006-01-03 11:45:57 -08:00
Kconfig.binfmt [PATCH] CONFIG_IA32 2005-10-30 17:37:10 -08:00
libfs.c
locks.c [PATCH] VFS: local denial-of-service with file leases 2005-11-13 12:29:58 -05:00
Makefile [PATCH] OCFS2: The Second Oracle Cluster Filesystem 2006-01-03 11:45:48 -08:00
mbcache.c [PATCH] kfree cleanup: fs 2005-11-07 07:54:06 -08:00
mpage.c [PATCH] add AOP_TRUNCATED_PAGE, prepend AOP_ to WRITEPAGE_ACTIVATE 2006-01-03 11:45:42 -08:00
namei.c [PATCH] fs/namei.c: make path_lookup_create() static 2005-11-09 07:56:40 -08:00
namespace.c [PATCH] add a vfs_permission helper 2005-11-09 07:55:58 -08:00
nfsctl.c
open.c [PATCH] add a file_permission helper 2005-11-09 07:55:59 -08:00
pipe.c
pnode.c [PATCH] unbindable mounts 2005-11-07 18:18:11 -08:00
pnode.h [PATCH] unbindable mounts 2005-11-07 18:18:11 -08:00
posix_acl.c [PATCH] gfp flags annotations - part 1 2005-10-08 15:00:57 -07:00
quota_v1.c
quota_v2.c
quota.c [PATCH] quota: small cleanups 2005-11-07 07:53:39 -08:00
read_write.c Relax the rw_verify_area() error checking. 2006-01-04 16:20:40 -08:00
readdir.c
select.c
seq_file.c [PATCH] allow callers of seq_open do allocation themselves 2005-11-07 18:18:09 -08:00
stat.c
super.c [PATCH] remove mount/umount uevents from superblock handling 2006-01-04 16:18:07 -08:00
xattr_acl.c
xattr.c [PATCH] Fix listxattr() for generic security attributes 2005-12-12 08:57:42 -08:00