From: yangsheng Date: Tue, 28 Jul 2009 08:18:51 +0000 (+0000) Subject: Branch b1_8 X-Git-Tag: v1_8_2_01~1^2~209 X-Git-Url: https://git.whamcloud.com/?a=commitdiff_plain;h=d0283386ab9eef0847686e12e3b2e3d25279c4c2;p=fs%2Flustre-release.git Branch b1_8 b=19808 i=shadow, yangsheng Remove obsolete config check. --- diff --git a/lustre/autoconf/lustre-core.m4 b/lustre/autoconf/lustre-core.m4 index 7aa6acf..8e7efaa 100644 --- a/lustre/autoconf/lustre-core.m4 +++ b/lustre/autoconf/lustre-core.m4 @@ -47,190 +47,21 @@ esac ]) # -# LC_CONFIG_EXT3 +# Ensure stack size big than 8k in Lustre server (all kernels) # -# that ext3 is enabled in the kernel -# -AC_DEFUN([LC_CONFIG_EXT3], -[LB_LINUX_CONFIG([EXT3_FS],[],[ - LB_LINUX_CONFIG([EXT3_FS_MODULE],[],[$2]) -]) -LB_LINUX_CONFIG([EXT3_FS_XATTR],[$1],[$3]) -]) - -# -# LC_FSHOOKS -# -# If we have (and can build) fshooks.h -# -AC_DEFUN([LC_FSHOOKS], -[LB_CHECK_FILE([$LINUX/include/linux/fshooks.h],[ - AC_MSG_CHECKING([if fshooks.h can be compiled]) - LB_LINUX_TRY_COMPILE([ - #include - ],[],[ - AC_MSG_RESULT([yes]) - ],[ - AC_MSG_RESULT([no]) - AC_MSG_WARN([You might have better luck with gcc 3.3.x.]) - AC_MSG_WARN([You can set CC=gcc33 before running configure.]) - AC_MSG_ERROR([Your compiler cannot build fshooks.h.]) - ]) -$1 -],[ -$2 -]) -]) - -# - -# -# LC_FUNC_RELEASEPAGE_WITH_GFP -# -# if ->releasepage() takes a gfp_t arg in 2.6.9 -# This kernel defines gfp_t (HAS_GFP_T) but doesn't use it for this function, -# while others either don't have gfp_t or pass gfp_t as the parameter. -# -AC_DEFUN([LC_FUNC_RELEASEPAGE_WITH_GFP], -[AC_MSG_CHECKING([if releasepage has a gfp_t parameter]) -RELEASEPAGE_WITH_GFP="`grep -c 'releasepage.*gfp_t' $LINUX/include/linux/fs.h`" -if test "$RELEASEPAGE_WITH_GFP" != 0 ; then - AC_DEFINE(HAVE_RELEASEPAGE_WITH_GFP, 1, - [releasepage with gfp_t parameter]) - AC_MSG_RESULT([yes]) -else - AC_MSG_RESULT([no]) -fi -]) - -# LC_FUNC_FILEMAP_FDATASYNC -# -# if filemap_fdatasync() exists -# -AC_DEFUN([LC_FUNC_FILEMAP_FDATAWRITE], -[AC_MSG_CHECKING([whether filemap_fdatawrite() is defined]) -LB_LINUX_TRY_COMPILE([ - #include -],[ - int (*foo)(struct address_space *)= filemap_fdatawrite; -],[ - AC_MSG_RESULT([yes]) - AC_DEFINE(HAVE_FILEMAP_FDATAWRITE, 1, [filemap_fdatawrite() found]) -],[ - AC_MSG_RESULT([no]) -]) -]) - -# -# LC_HEADER_MM_INLINE -# -# RHEL kernels define page_count in mm_inline.h -# -AC_DEFUN([LC_HEADER_MM_INLINE], -[AC_MSG_CHECKING([if kernel has mm_inline.h header]) -LB_LINUX_TRY_COMPILE([ - #include -],[ - #ifndef page_count - #error mm_inline.h does not define page_count - #endif -],[ - AC_MSG_RESULT([yes]) - AC_DEFINE(HAVE_MM_INLINE, 1, [mm_inline found]) -],[ - AC_MSG_RESULT([no]) -]) -]) - -# -# LC_STRUCT_INODE -# -# if inode->i_alloc_sem exists -# -AC_DEFUN([LC_STRUCT_INODE], -[AC_MSG_CHECKING([if struct inode has i_alloc_sem]) -LB_LINUX_TRY_COMPILE([ - #include - #include -],[ - struct inode i; - return (char *)&i.i_alloc_sem - (char *)&i; -],[ - AC_MSG_RESULT([yes]) - AC_DEFINE(HAVE_I_ALLOC_SEM, 1, [struct inode has i_alloc_sem]) -],[ - AC_MSG_RESULT([no]) -]) -]) - -# -# LC_FUNC_REGISTER_CACHE -# -# if register_cache() is defined by kernel -# -# There are two ways to shrink one customized cache in linux kernels. For the -# kernels are prior than 2.6.5(?), register_cache() is used, and for latest -# kernels, set_shrinker() is used instead. -# -AC_DEFUN([LC_FUNC_REGISTER_CACHE], -[AC_MSG_CHECKING([if kernel defines cache pressure hook]) +AC_DEFUN([LC_STACK_SIZE], +[AC_MSG_CHECKING([stack size big than 8k]) LB_LINUX_TRY_COMPILE([ - #include + #include ],[ - shrinker_t shrinker; - - set_shrinker(1, shrinker); + #if THREAD_SIZE < 8192 + #error "stack size < 8192" + #endif ],[ - AC_MSG_RESULT([set_shrinker]) - AC_DEFINE(HAVE_SHRINKER_CACHE, 1, [shrinker_cache found]) - AC_DEFINE(HAVE_CACHE_RETURN_INT, 1, [shrinkers should return int]) + AC_MSG_RESULT(yes) ],[ - LB_LINUX_TRY_COMPILE([ - #include - #include - ],[ - struct cache_definition cache; - ],[ - AC_MSG_RESULT([register_cache]) - AC_DEFINE(HAVE_REGISTER_CACHE, 1, [register_cache found]) - AC_MSG_CHECKING([if kernel expects return from cache shrink ]) - tmp_flags="$EXTRA_KCFLAGS" - EXTRA_KCFLAGS="-Werror" - LB_LINUX_TRY_COMPILE([ - #include - #include - ],[ - struct cache_definition c; - c.shrinker = (int (*)(int, unsigned int))1; - ],[ - AC_DEFINE(HAVE_CACHE_RETURN_INT, 1, - [kernel expects return from shrink_cache]) - AC_MSG_RESULT(yes) - ],[ - AC_MSG_RESULT(no) - ]) - EXTRA_KCFLAGS="$tmp_flags" - ],[ - AC_MSG_RESULT([no]) - ]) -]) + AC_MSG_ERROR([Lustre requires that Linux is configured with at least a 8KB stack.]) ]) - -# -# LC_FUNC_GRAB_CACHE_PAGE_NOWAIT_GFP -# -# check for our patched grab_cache_page_nowait_gfp() function -# -AC_DEFUN([LC_FUNC_GRAB_CACHE_PAGE_NOWAIT_GFP], -[AC_MSG_CHECKING([if kernel defines grab_cache_page_nowait_gfp()]) -HAVE_GCPN_GFP="`grep -c 'grab_cache_page_nowait_gfp' $LINUX/include/linux/pagemap.h`" -if test "$HAVE_GCPN_GFP" != 0 ; then - AC_DEFINE(HAVE_GRAB_CACHE_PAGE_NOWAIT_GFP, 1, - [kernel has grab_cache_page_nowait_gfp()]) - AC_MSG_RESULT(yes) -else - AC_MSG_RESULT(no) -fi ]) # @@ -243,6 +74,7 @@ AC_DEFUN([LC_FUNC_DEV_SET_RDONLY], [AC_MSG_CHECKING([if kernel has new dev_set_rdonly]) LB_LINUX_TRY_COMPILE([ #include + #include ],[ #ifndef HAVE_CLEAR_RDONLY_ON_PUT #error needs to be patched by lustre kernel patches from Lustre version 1.4.3 or above. @@ -251,7 +83,7 @@ LB_LINUX_TRY_COMPILE([ AC_MSG_RESULT([yes]) AC_DEFINE(HAVE_DEV_SET_RDONLY, 1, [kernel has new dev_set_rdonly]) ],[ - AC_MSG_RESULT([no, Linux kernel source needs to be patches by lustre + AC_MSG_ERROR([no, Linux kernel source needs to be patches by lustre kernel patches from Lustre version 1.4.3 or above.]) ]) ]) @@ -266,19 +98,9 @@ AC_DEFUN([LC_CONFIG_BACKINGFS], BACKINGFS="ldiskfs" if test x$with_ldiskfs = xno ; then - BACKINGFS="ext3" - if test x$enable_server = xyes ; then AC_MSG_ERROR([ldiskfs is required for 2.6-based servers.]) fi - - # --- Check that ext3 and ext3 xattr are enabled in the kernel - LC_CONFIG_EXT3([],[ - AC_MSG_ERROR([Lustre requires that ext3 is enabled in the kernel]) - ],[ - AC_MSG_WARN([Lustre requires that extended attributes for ext3 are enabled in the kernel]) - AC_MSG_WARN([This build may fail.]) - ]) else # ldiskfs is enabled LB_DEFINE_LDISKFS_OPTIONS @@ -411,35 +233,71 @@ AC_TRY_COMPILE([ ]) ]) -AC_DEFUN([LC_FUNC_PAGE_MAPPED], -[AC_MSG_CHECKING([if kernel offers page_mapped]) +# +# LC_FUNC_MS_FLOCK_LOCK +# +# 2.6.5 kernel has MS_FLOCK_LOCK sb flag +# +AC_DEFUN([LC_FUNC_MS_FLOCK_LOCK], +[AC_MSG_CHECKING([if kernel has MS_FLOCK_LOCK sb flag]) LB_LINUX_TRY_COMPILE([ - #include + #include ],[ - page_mapped(NULL); + int flags = MS_FLOCK_LOCK; ],[ - AC_MSG_RESULT([yes]) - AC_DEFINE(HAVE_PAGE_MAPPED, 1, [page_mapped found]) + AC_DEFINE(HAVE_MS_FLOCK_LOCK, 1, + [kernel has MS_FLOCK_LOCK flag]) + AC_MSG_RESULT([yes]) ],[ - AC_MSG_RESULT([no]) + AC_MSG_RESULT([no]) ]) ]) -AC_DEFUN([LC_STRUCT_FILE_OPS_UNLOCKED_IOCTL], -[AC_MSG_CHECKING([if struct file_operations has an unlocked_ioctl field]) +# +# LC_FUNC_HAVE_CAN_SLEEP_ARG +# +# 2.6.5 kernel has third arg can_sleep in fs/locks.c: flock_lock_file_wait() +# +AC_DEFUN([LC_FUNC_HAVE_CAN_SLEEP_ARG], +[AC_MSG_CHECKING([if kernel has third arg can_sleep in fs/locks.c: flock_lock_file_wait()]) LB_LINUX_TRY_COMPILE([ #include ],[ - struct file_operations fops; - &fops.unlocked_ioctl; + int cansleep; + struct file *file; + struct file_lock *file_lock; + flock_lock_file_wait(file, file_lock, cansleep); ],[ + AC_DEFINE(HAVE_CAN_SLEEP_ARG, 1, + [kernel has third arg can_sleep in fs/locks.c: flock_lock_file_wait()]) AC_MSG_RESULT([yes]) - AC_DEFINE(HAVE_UNLOCKED_IOCTL, 1, [struct file_operations has an unlock ed_ioctl field]) ],[ AC_MSG_RESULT([no]) ]) ]) +# +# LC_FUNC_RELEASEPAGE_WITH_GFP +# +# 2.6.9 ->releasepage() takes a gfp_t arg +# This kernel defines gfp_t (HAS_GFP_T) but doesn't use it for this function, +# while others either don't have gfp_t or pass gfp_t as the parameter. +# +AC_DEFUN([LC_FUNC_RELEASEPAGE_WITH_GFP], +[AC_MSG_CHECKING([if releasepage has a gfp_t parameter]) +RELEASEPAGE_WITH_GFP="$(grep -c 'releasepage.*gfp_t' $LINUX/include/linux/fs.h)" +if test "$RELEASEPAGE_WITH_GFP" != 0 ; then + AC_DEFINE(HAVE_RELEASEPAGE_WITH_GFP, 1, + [releasepage with gfp_t parameter]) + AC_MSG_RESULT([yes]) +else + AC_MSG_RESULT([no]) +fi +]) + +# +# between 2.6.5 - 2.6.22 filemap_populate is exported in some kernels +# AC_DEFUN([LC_FILEMAP_POPULATE], [AC_MSG_CHECKING([for exported filemap_populate]) LB_LINUX_TRY_COMPILE([ @@ -455,6 +313,9 @@ LB_LINUX_TRY_COMPILE([ ]) ]) +# +# added in 2.6.15 +# AC_DEFUN([LC_D_ADD_UNIQUE], [AC_MSG_CHECKING([for d_add_unique]) LB_LINUX_TRY_COMPILE([ @@ -469,6 +330,9 @@ LB_LINUX_TRY_COMPILE([ ]) ]) +# +# added in 2.6.17 +# AC_DEFUN([LC_BIT_SPINLOCK_H], [LB_CHECK_FILE([$LINUX/include/linux/bit_spinlock.h],[ AC_MSG_CHECKING([if bit_spinlock.h can be compiled]) @@ -487,9 +351,7 @@ AC_DEFUN([LC_BIT_SPINLOCK_H], ]) # -# LC_POSIX_ACL_XATTR -# -# If we have xattr_acl.h +# After 2.6.26 we no longer have xattr_acl.h # AC_DEFUN([LC_XATTR_ACL], [LB_CHECK_FILE([$LINUX/include/linux/xattr_acl.h],[ @@ -506,28 +368,10 @@ AC_DEFUN([LC_XATTR_ACL], []) ]) + # -# LC_LINUX_FIEMAP_H -# -# If we have fiemap.h -# after 2.6.27 use fiemap.h in include/linux +# added in 2.6.16 # -AC_DEFUN([LC_LINUX_FIEMAP_H], -[LB_CHECK_FILE([$LINUX/include/linux/fiemap.h],[ - AC_MSG_CHECKING([if fiemap.h can be compiled]) - LB_LINUX_TRY_COMPILE([ - #include - ],[],[ - AC_MSG_RESULT([yes]) - AC_DEFINE(HAVE_LINUX_FIEMAP_H, 1, [Kernel has fiemap.h]) - ],[ - AC_MSG_RESULT([no]) - ]) -], -[]) -]) - - AC_DEFUN([LC_STRUCT_INTENT_FILE], [AC_MSG_CHECKING([if struct open_intent has a file field]) LB_LINUX_TRY_COMPILE([ @@ -545,6 +389,9 @@ LB_LINUX_TRY_COMPILE([ ]) +# +# After 2.6.16 the xattr_acl API is removed, and posix_acl is used instead +# AC_DEFUN([LC_POSIX_ACL_XATTR_H], [LB_CHECK_FILE([$LINUX/include/linux/posix_acl_xattr.h],[ AC_MSG_CHECKING([if linux/posix_acl_xattr.h can be compiled]) @@ -575,7 +422,9 @@ AC_DEFUN([LC_EXPORT___IGET], ]) ]) - +# +# only for Lustre-patched kernels +# AC_DEFUN([LC_LUSTRE_VERSION_H], [LB_CHECK_FILE([$LINUX/include/linux/lustre_version.h],[ rm -f "$LUSTRE/include/linux/lustre_version.h" @@ -603,7 +452,7 @@ AC_DEFUN([LC_LUSTRE_VERSION_H], ]) # -# check for FS_RENAME_DOES_D_MOVE flag +# 2.6.19 check for FS_RENAME_DOES_D_MOVE flag # AC_DEFUN([LC_FS_RENAME_DOES_D_MOVE], [AC_MSG_CHECKING([if kernel has FS_RENAME_DOES_D_MOVE flag]) @@ -619,135 +468,6 @@ LB_LINUX_TRY_COMPILE([ ]) ]) -# -# LC_FUNC_MS_FLOCK_LOCK -# -# SLES9 kernel has MS_FLOCK_LOCK sb flag -# -AC_DEFUN([LC_FUNC_MS_FLOCK_LOCK], -[AC_MSG_CHECKING([if kernel has MS_FLOCK_LOCK sb flag]) -LB_LINUX_TRY_COMPILE([ - #include -],[ - int flags = MS_FLOCK_LOCK; -],[ - AC_DEFINE(HAVE_MS_FLOCK_LOCK, 1, - [kernel has MS_FLOCK_LOCK flag]) - AC_MSG_RESULT([yes]) -],[ - AC_MSG_RESULT([no]) -]) -]) - -# -# LC_FUNC_HAVE_CAN_SLEEP_ARG -# -# SLES9 kernel has third arg can_sleep -# in fs/locks.c: flock_lock_file_wait() -# -AC_DEFUN([LC_FUNC_HAVE_CAN_SLEEP_ARG], -[AC_MSG_CHECKING([if kernel has third arg can_sleep in fs/locks.c: flock_lock_file_wait()]) -LB_LINUX_TRY_COMPILE([ - #include -],[ - int cansleep; - struct file *file; - struct file_lock *file_lock; - flock_lock_file_wait(file, file_lock, cansleep); -],[ - AC_DEFINE(HAVE_CAN_SLEEP_ARG, 1, - [kernel has third arg can_sleep in fs/locks.c: flock_lock_file_wait()]) - AC_MSG_RESULT([yes]) -],[ - AC_MSG_RESULT([no]) -]) -]) - -# -# LC_FUNC_F_OP_FLOCK -# -# rhel4.2 kernel has f_op->flock field -# -AC_DEFUN([LC_FUNC_F_OP_FLOCK], -[AC_MSG_CHECKING([if struct file_operations has flock field]) -LB_LINUX_TRY_COMPILE([ - #include -],[ - struct file_operations ll_file_operations_flock; - ll_file_operations_flock.flock = NULL; -],[ - AC_DEFINE(HAVE_F_OP_FLOCK, 1, - [struct file_operations has flock field]) - AC_MSG_RESULT([yes]) -],[ - AC_MSG_RESULT([no]) -]) -]) - -# -# LC_FUNC_MS_FLOCK_LOCK -# -# SLES9 kernel has MS_FLOCK_LOCK sb flag -# -AC_DEFUN([LC_FUNC_MS_FLOCK_LOCK], -[AC_MSG_CHECKING([if kernel has MS_FLOCK_LOCK sb flag]) -LB_LINUX_TRY_COMPILE([ - #include -],[ - int flags = MS_FLOCK_LOCK; -],[ - AC_DEFINE(HAVE_MS_FLOCK_LOCK, 1, - [kernel has MS_FLOCK_LOCK flag]) - AC_MSG_RESULT([yes]) -],[ - AC_MSG_RESULT([no]) -]) -]) - -# -# LC_FUNC_HAVE_CAN_SLEEP_ARG -# -# SLES9 kernel has third arg can_sleep -# in fs/locks.c: flock_lock_file_wait() -# -AC_DEFUN([LC_FUNC_HAVE_CAN_SLEEP_ARG], -[AC_MSG_CHECKING([if kernel has third arg can_sleep in fs/locks.c: flock_lock_file_wait()]) -LB_LINUX_TRY_COMPILE([ - #include -],[ - int cansleep; - struct file *file; - struct file_lock *file_lock; - flock_lock_file_wait(file, file_lock, cansleep); -],[ - AC_DEFINE(HAVE_CAN_SLEEP_ARG, 1, - [kernel has third arg can_sleep in fs/locks.c: flock_lock_file_wait()]) - AC_MSG_RESULT([yes]) -],[ - AC_MSG_RESULT([no]) -]) -]) - -# -# LC_TASK_PPTR -# -# task struct has p_pptr instead of parent -# -AC_DEFUN([LC_TASK_PPTR], -[AC_MSG_CHECKING([task p_pptr found]) -LB_LINUX_TRY_COMPILE([ - #include -],[ - struct task_struct *p; - - p = p->p_pptr; -],[ - AC_MSG_RESULT([yes]) - AC_DEFINE(HAVE_TASK_PPTR, 1, [task p_pptr found]) -],[ - AC_MSG_RESULT([no]) -]) -]) # # LC_FUNC_F_OP_FLOCK @@ -865,8 +585,7 @@ LB_LINUX_TRY_COMPILE([ # # LC_INVALIDATEPAGE_RETURN_INT -# more 2.6 api changes. return type for the invalidatepage -# address_space_operation is 'void' in new kernels but 'int' in old +# 2.6.17 changes return type for invalidatepage to 'void' from 'int' # AC_DEFUN([LC_INVALIDATEPAGE_RETURN_INT], [AC_MSG_CHECKING([invalidatepage has return int]) @@ -884,7 +603,7 @@ LB_LINUX_TRY_COMPILE([ ]) # LC_UMOUNTBEGIN_HAS_VFSMOUNT -# more 2.6 API changes. 2.6.18 umount_begin has different parameters +# after 2.6.18 umount_begin has different parameters AC_DEFUN([LC_UMOUNTBEGIN_HAS_VFSMOUNT], [AC_MSG_CHECKING([if umount_begin needs vfsmount parameter instead of super_block]) tmp_flags="$EXTRA_KCFLAGS" @@ -1094,8 +813,7 @@ LB_LINUX_TRY_COMPILE([ ]) ]) -# RHEL5 in FS-cache patch rename PG_checked flag -# into PG_fs_misc +# RHEL5 in FS-cache patch rename PG_checked flag into PG_fs_misc AC_DEFUN([LC_PG_FS_MISC], [AC_MSG_CHECKING([kernel has PG_fs_misc]) LB_LINUX_TRY_COMPILE([ @@ -1310,7 +1028,26 @@ LB_LINUX_TRY_COMPILE([ EXTRA_KCFLAGS="$tmp_flags" ]) -# 2.6.18 +# +# LC_FUNC_GRAB_CACHE_PAGE_NOWAIT_GFP +# +# Check for our patched grab_cache_page_nowait_gfp() function +# after 2.6.29 we can emulate this using add_to_page_cache_lru() +# +AC_DEFUN([LC_FUNC_GRAB_CACHE_PAGE_NOWAIT_GFP], +[LB_CHECK_SYMBOL_EXPORT([grab_cache_page_nowait_gfp], +[mm/filemap.c],[ + AC_DEFINE(HAVE_GRAB_CACHE_PAGE_NOWAIT_GFP, 1, + [kernel exports grab_cache_page_nowait_gfp]) + ], + [LB_CHECK_SYMBOL_EXPORT([add_to_page_cache_lru], + [mm/filemap.c],[ + AC_DEFINE(HAVE_ADD_TO_PAGE_CACHE_LRU, 1, + [kernel exports add_to_page_cache_lru]) + ],[ + ]) + ]) +]) # 2.6.23 have return type 'void' for unregister_blkdev @@ -1394,19 +1131,13 @@ LB_LINUX_TRY_COMPILE([ ]) ]) -#2.6.23 has new shrinker API +# 2.6.23 has new shrinker API AC_DEFUN([LC_REGISTER_SHRINKER], -[AC_MSG_CHECKING([if kernel has register_shrinker]) -LB_LINUX_TRY_COMPILE([ - #include -],[ - register_shrinker(NULL); -], [ - AC_MSG_RESULT([yes]) +[LB_CHECK_SYMBOL_EXPORT([register_shrinker], +[mm/vmscan.c],[ AC_DEFINE(HAVE_REGISTER_SHRINKER, 1, - [if kernel has register_shrinker]) + [kernel exports register_shrinker]) ],[ - AC_MSG_RESULT([no]) ]) ]) @@ -1535,6 +1266,28 @@ LB_LINUX_TRY_COMPILE([ ]) ]) + +# +# LC_LINUX_FIEMAP_H +# +# If we have fiemap.h +# after 2.6.27 use fiemap.h in include/linux +# +AC_DEFUN([LC_LINUX_FIEMAP_H], +[LB_CHECK_FILE([$LINUX/include/linux/fiemap.h],[ + AC_MSG_CHECKING([if fiemap.h can be compiled]) + LB_LINUX_TRY_COMPILE([ + #include + ],[],[ + AC_MSG_RESULT([yes]) + AC_DEFINE(HAVE_LINUX_FIEMAP_H, 1, [Kernel has fiemap.h]) + ],[ + AC_MSG_RESULT([no]) + ]) +], +[]) +]) + #2.6.27 AC_DEFUN([LC_INODE_PERMISION_2ARGS], [AC_MSG_CHECKING([inode_operations->permission have two args]) @@ -1794,23 +1547,6 @@ LB_LINUX_TRY_COMPILE([ ]) # -# Ensure stack size big than 8k in Lustre server -AC_DEFUN([LC_STACK_SIZE], -[AC_MSG_CHECKING([stack size big than 8k]) -LB_LINUX_TRY_COMPILE([ - #include -],[ - #if THREAD_SIZE < 8192 - #error "stack size < 8192" - #endif -],[ - AC_MSG_RESULT(yes) -],[ - AC_MSG_ERROR([Lustre requires that Linux is configured with at least a 8KB stack.]) -]) -]) - -# # LC_PROG_LINUX # # Lustre linux kernel checks @@ -1818,6 +1554,7 @@ LB_LINUX_TRY_COMPILE([ AC_DEFUN([LC_PROG_LINUX], [LC_LUSTRE_VERSION_H if test x$enable_server = xyes ; then + LC_FUNC_DEV_SET_RDONLY LC_CONFIG_BACKINGFS LC_STACK_SIZE fi @@ -1841,15 +1578,8 @@ AC_DEFUN([LC_PROG_LINUX], LC_EXPORT_NODE_TO_CPUMASK LC_FUNC_RELEASEPAGE_WITH_GFP - LC_HEADER_MM_INLINE - LC_STRUCT_INODE - LC_FUNC_REGISTER_CACHE LC_FUNC_GRAB_CACHE_PAGE_NOWAIT_GFP - LC_FUNC_DEV_SET_RDONLY - LC_FUNC_FILEMAP_FDATAWRITE LC_STRUCT_STATFS - LC_FUNC_PAGE_MAPPED - LC_STRUCT_FILE_OPS_UNLOCKED_IOCTL LC_FILEMAP_POPULATE LC_D_ADD_UNIQUE LC_BIT_SPINLOCK_H @@ -1859,7 +1589,6 @@ AC_DEFUN([LC_PROG_LINUX], LC_EXPORT___IGET LC_FUNC_MS_FLOCK_LOCK LC_FUNC_HAVE_CAN_SLEEP_ARG - LC_FUNC_F_OP_FLOCK LC_QUOTA_READ LC_COOKIE_FOLLOW_LINK LC_FUNC_RCU diff --git a/lustre/include/linux/lustre_compat25.h b/lustre/include/linux/lustre_compat25.h index 34ea09e..da0cb36 100644 --- a/lustre/include/linux/lustre_compat25.h +++ b/lustre/include/linux/lustre_compat25.h @@ -304,7 +304,7 @@ static inline int mapping_has_pages(struct address_space *mapping) #define ll_vfs_symlink(dir, dentry, mnt, path, mode) \ vfs_symlink(dir, dentry, path) #endif -#endif +#endif /* HAVE_SECURITY_PLUG */ #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,7)) #define ll_set_dflags(dentry, flags) do { dentry->d_vfs_flags |= flags; } while(0) @@ -322,32 +322,18 @@ static inline int mapping_has_pages(struct address_space *mapping) (type *)( (char *)__mptr - offsetof(type,member) );}) #endif -#ifdef HAVE_I_ALLOC_SEM -#define UP_WRITE_I_ALLOC_SEM(i) do { up_write(&(i)->i_alloc_sem); } while (0) -#define DOWN_WRITE_I_ALLOC_SEM(i) do { down_write(&(i)->i_alloc_sem); } while(0) +#define UP_WRITE_I_ALLOC_SEM(i) up_write(&(i)->i_alloc_sem) +#define DOWN_WRITE_I_ALLOC_SEM(i) down_write(&(i)->i_alloc_sem) #define LASSERT_I_ALLOC_SEM_WRITE_LOCKED(i) LASSERT(down_read_trylock(&(i)->i_alloc_sem) == 0) -#define UP_READ_I_ALLOC_SEM(i) do { up_read(&(i)->i_alloc_sem); } while (0) -#define DOWN_READ_I_ALLOC_SEM(i) do { down_read(&(i)->i_alloc_sem); } while (0) +#define UP_READ_I_ALLOC_SEM(i) up_read(&(i)->i_alloc_sem) +#define DOWN_READ_I_ALLOC_SEM(i) down_read(&(i)->i_alloc_sem) #define LASSERT_I_ALLOC_SEM_READ_LOCKED(i) LASSERT(down_write_trylock(&(i)->i_alloc_sem) == 0) -#else -#define UP_READ_I_ALLOC_SEM(i) do { } while (0) -#define DOWN_READ_I_ALLOC_SEM(i) do { } while (0) -#define LASSERT_I_ALLOC_SEM_READ_LOCKED(i) do { } while (0) - -#define UP_WRITE_I_ALLOC_SEM(i) do { } while (0) -#define DOWN_WRITE_I_ALLOC_SEM(i) do { } while (0) -#define LASSERT_I_ALLOC_SEM_WRITE_LOCKED(i) do { } while (0) -#endif #ifndef HAVE_GRAB_CACHE_PAGE_NOWAIT_GFP #define grab_cache_page_nowait_gfp(x, y, z) grab_cache_page_nowait((x), (y)) #endif -#ifndef HAVE_FILEMAP_FDATAWRITE -#define filemap_fdatawrite(mapping) filemap_fdatasync(mapping) -#endif - #include /* for generic_writepages */ #ifndef HAVE_FILEMAP_FDATAWRITE_RANGE #include /* for mapping->backing_dev_info */ @@ -385,11 +371,10 @@ static inline int filemap_fdatawrite_range(struct address_space *mapping, #else int filemap_fdatawrite_range(struct address_space *mapping, loff_t start, loff_t end); -#endif +#endif /* HAVE_FILEMAP_FDATAWRITE_RANGE */ #ifdef HAVE_VFS_KERN_MOUNT -static inline -struct vfsmount * +static inline struct vfsmount * ll_kern_mount(const char *fstype, int flags, const char *name, void *data) { struct file_system_type *type = get_fs_type(fstype); @@ -410,11 +395,6 @@ ll_kern_mount(const char *fstype, int flags, const char *name, void *data) #define ll_do_statfs(sb, sfs) (sb)->s_op->statfs((sb), (sfs)) #endif -/* task_struct */ -#ifndef HAVE_TASK_PPTR -#define p_pptr parent -#endif - #ifdef HAVE_UNREGISTER_BLKDEV_RETURN_INT #define ll_unregister_blkdev(a,b) unregister_blkdev((a),(b)) #else @@ -460,7 +440,7 @@ int ll_unregister_blkdev(unsigned int dev, const char *name) #define ll_vfs_mknod(dir,entry,mnt,mode,dev) \ vfs_mknod(dir,entry,mnt,mode,dev) #define ll_security_inode_unlink(dir,entry,mnt) \ - security_inode_unlink(dir,entry,mnt) + security_inode_unlink(dir,entry,mnt) #define ll_vfs_rename(old,old_dir,mnt,new,new_dir,mnt1) \ vfs_rename(old,old_dir,mnt,new,new_dir,mnt1) #else @@ -469,10 +449,10 @@ int ll_unregister_blkdev(unsigned int dev, const char *name) #define ll_vfs_link(old,mnt,dir,new,mnt1) vfs_link(old,dir,new) #define ll_vfs_unlink(inode,entry,mnt) vfs_unlink(inode,entry) #define ll_vfs_mknod(dir,entry,mnt,mode,dev) vfs_mknod(dir,entry,mode,dev) -#define ll_security_inode_unlink(dir,entry,mnt) security_inode_unlink(dir,entry) +#define ll_security_inode_unlink(dir,entry,mnt) security_inode_unlink(dir,entry) #define ll_vfs_rename(old,old_dir,mnt,new,new_dir,mnt1) \ vfs_rename(old,old_dir,new,new_dir) -#endif +#endif /* HAVE_SECURITY_PLUG */ #ifndef for_each_possible_cpu #define for_each_possible_cpu(i) for_each_cpu(i) @@ -511,7 +491,7 @@ void remove_shrinker(struct shrinker *shrinker) unregister_shrinker(shrinker); kfree(shrinker); } -#endif +#endif /* HAVE_REGISTER_SHRINKER */ #ifdef HAVE_BIO_ENDIO_2ARG #define cfs_bio_io_error(a,b) bio_io_error((a)) diff --git a/lustre/llite/dcache.c b/lustre/llite/dcache.c index 0aa0984..7602d80 100644 --- a/lustre/llite/dcache.c +++ b/lustre/llite/dcache.c @@ -666,7 +666,7 @@ out_sa: } #ifdef HAVE_VFS_INTENT_PATCHES -static int ll_revalidate_nd(struct dentry *dentry, struct nameidata *nd) +int ll_revalidate_nd(struct dentry *dentry, struct nameidata *nd) { int rc; ENTRY; diff --git a/lustre/llite/llite_internal.h b/lustre/llite/llite_internal.h index 530689e..0a6fc23 100644 --- a/lustre/llite/llite_internal.h +++ b/lustre/llite/llite_internal.h @@ -629,31 +629,6 @@ enum { }; extern char *llap_origins[]; -#ifdef HAVE_REGISTER_CACHE -#include -#define ll_register_cache(cache) register_cache(cache) -#define ll_unregister_cache(cache) unregister_cache(cache) -#elif defined(HAVE_SHRINKER_CACHE) -struct cache_definition { - const char *name; - shrinker_t shrink; - struct shrinker *shrinker; -}; - -#define ll_register_cache(cache) do { \ - struct cache_definition *c = (cache); \ - c->shrinker = set_shrinker(DEFAULT_SEEKS, c->shrink); \ -} while(0) - -#define ll_unregister_cache(cache) do { \ - remove_shrinker((cache)->shrinker); \ - (cache)->shrinker = NULL; \ -} while(0) -#else -#define ll_register_cache(cache) do {} while (0) -#define ll_unregister_cache(cache) do {} while (0) -#endif - void ll_ra_read_init(struct file *f, struct ll_ra_read *rar, loff_t offset, size_t count); void ll_ra_read_ex(struct file *f, struct ll_ra_read *rar); @@ -836,6 +811,7 @@ void ll_lli_init(struct ll_inode_info *lli); int ll_fill_super(struct super_block *sb); void ll_put_super(struct super_block *sb); void ll_kill_super(struct super_block *sb); +int ll_shrink_cache(int nr_to_scan, gfp_t gfp_mask); struct inode *ll_inode_from_lock(struct ldlm_lock *lock); void ll_clear_inode(struct inode *inode); int ll_setattr_raw(struct inode *inode, struct iattr *attr); diff --git a/lustre/llite/llite_lib.c b/lustre/llite/llite_lib.c index 4b3d794..9ace0cb 100644 --- a/lustre/llite/llite_lib.c +++ b/lustre/llite/llite_lib.c @@ -1295,35 +1295,23 @@ void ll_put_super(struct super_block *sb) EXIT; } /* client_put_super */ -#if defined(HAVE_REGISTER_CACHE) || defined(HAVE_SHRINKER_CACHE) - -#if defined(HAVE_CACHE_RETURN_INT) -static int -#else -static void -#endif -ll_shrink_cache(int priority, unsigned int gfp_mask) +int ll_shrink_cache(int nr_to_scan, gfp_t gfp_mask) { struct ll_sb_info *sbi; int count = 0; + if (gfp_mask & __GFP_FS) + return -1; + /* don't race with umount */ down_read(&ll_sb_sem); list_for_each_entry(sbi, &ll_super_blocks, ll_list) - count += llap_shrink_cache(sbi, priority); + count += llap_shrink_cache(sbi, nr_to_scan); up_read(&ll_sb_sem); -#if defined(HAVE_CACHE_RETURN_INT) return count; -#endif } -struct cache_definition ll_cache_definition = { - .name = "llap_cache", - .shrink = ll_shrink_cache -}; -#endif /* HAVE_REGISTER_CACHE || HAVE_SHRINKER_CACHE */ - struct inode *ll_inode_from_lock(struct ldlm_lock *lock) { struct inode *inode = NULL; diff --git a/lustre/llite/lproc_llite.c b/lustre/llite/lproc_llite.c index 9daf6d4..266ade3 100644 --- a/lustre/llite/lproc_llite.c +++ b/lustre/llite/lproc_llite.c @@ -757,7 +757,7 @@ void ll_stats_ops_tally(struct ll_sb_info *sbi, int op, int count) sbi->ll_stats_track_id == current->pid) lprocfs_counter_add(sbi->ll_stats, op, count); else if (sbi->ll_stats_track_type == STATS_TRACK_PPID && - sbi->ll_stats_track_id == current->p_pptr->pid) + sbi->ll_stats_track_id == current->parent->pid) lprocfs_counter_add(sbi->ll_stats, op, count); else if (sbi->ll_stats_track_type == STATS_TRACK_GID && sbi->ll_stats_track_id == current->gid) diff --git a/lustre/llite/rw.c b/lustre/llite/rw.c index da675c7..111fca7 100644 --- a/lustre/llite/rw.c +++ b/lustre/llite/rw.c @@ -640,35 +640,24 @@ static inline int llap_shrink_cache_internal(struct ll_sb_info *sbi, * it deduces how many pages should be reaped from each cpu in proportion as * their own # of page count(llpd_count). */ -int llap_shrink_cache(struct ll_sb_info *sbi, int shrink_fraction) +int llap_shrink_cache(struct ll_sb_info *sbi, int nr_to_scan) { unsigned long total, want, percpu_want, count = 0; int cpu, nr_cpus; total = lcounter_read_positive(&sbi->ll_async_page_count); - if (total == 0) - return 0; - -#ifdef HAVE_SHRINKER_CACHE - want = shrink_fraction; - if (want == 0) + if (total == 0 || nr_to_scan == 0) return total; -#else - /* There can be a large number of llaps (600k or more in a large - * memory machine) so the VM 1/6 shrink ratio is likely too much. - * Since we are freeing pages also, we don't necessarily want to - * shrink so much. Limit to 40MB of pages + llaps per call. */ - if (shrink_fraction <= 0) - want = total - sbi->ll_async_page_max + 32*num_online_cpus(); - else - want = (total + shrink_fraction - 1) / shrink_fraction; -#endif + want = nr_to_scan; + + /* Since we are freeing pages also, we don't necessarily want to + * shrink so much. Limit to 40MB of pages + llaps per call. */ if (want > 40 << (20 - CFS_PAGE_SHIFT)) want = 40 << (20 - CFS_PAGE_SHIFT); - CDEBUG(D_CACHE, "shrinking %lu of %lu pages (1/%d)\n", - want, total, shrink_fraction); + CDEBUG(D_CACHE, "shrinking %lu of %lu pages (asked for %u)\n", + want, total, nr_to_scan); nr_cpus = num_possible_cpus(); cpu = sbi->ll_async_page_clock_hand; @@ -693,11 +682,7 @@ int llap_shrink_cache(struct ll_sb_info *sbi, int shrink_fraction) CDEBUG(D_CACHE, "shrank %lu/%lu and left %lu unscanned\n", count, want, total); -#ifdef HAVE_SHRINKER_CACHE return lcounter_read_positive(&sbi->ll_async_page_count); -#else - return count; -#endif } /* Rebalance the async page queue len for each cpu. We hope that the cpu diff --git a/lustre/llite/super25.c b/lustre/llite/super25.c index 6d8103a..fa4e8e7 100644 --- a/lustre/llite/super25.c +++ b/lustre/llite/super25.c @@ -104,6 +104,8 @@ struct super_operations lustre_super_operations = void lustre_register_client_process_config(int (*cpc)(struct lustre_cfg *lcfg)); +static struct shrinker *ll_shrinker; + static int __init init_lustre_lite(void) { int i, rc, seed[2]; @@ -127,7 +129,7 @@ static int __init init_lustre_lite(void) proc_mkdir("llite", proc_lustre_root) : NULL; init_rwsem(&ll_sb_sem); - ll_register_cache(&ll_cache_definition); + ll_shrinker = set_shrinker(DEFAULT_SEEKS, ll_shrink_cache); lustre_register_client_fill_super(ll_fill_super); lustre_register_kill_super_cb(ll_kill_super); @@ -162,7 +164,7 @@ static void __exit exit_lustre_lite(void) lustre_register_client_process_config(NULL); - ll_unregister_cache(&ll_cache_definition); + remove_shrinker(ll_shrinker); ll_destroy_inodecache(); rc = cfs_mem_cache_destroy(ll_file_data_slab); diff --git a/lustre/mds/mds_internal.h b/lustre/mds/mds_internal.h index 9a5fc5e..2a60940 100644 --- a/lustre/mds/mds_internal.h +++ b/lustre/mds/mds_internal.h @@ -71,7 +71,6 @@ static inline void mds_export_evict(struct obd_export *exp) /* Open counts for files. No longer atomic, must hold inode->i_sem */ # define mds_inode_oatomic(inode) ((inode)->i_cindex) -#ifdef HAVE_I_ALLOC_SEM #define MDS_UP_READ_ORPHAN_SEM(i) UP_READ_I_ALLOC_SEM(i) #define MDS_DOWN_READ_ORPHAN_SEM(i) DOWN_READ_I_ALLOC_SEM(i) #define LASSERT_MDS_ORPHAN_READ_LOCKED(i) LASSERT_I_ALLOC_SEM_READ_LOCKED(i) @@ -80,16 +79,6 @@ static inline void mds_export_evict(struct obd_export *exp) #define MDS_DOWN_WRITE_ORPHAN_SEM(i) DOWN_WRITE_I_ALLOC_SEM(i) #define LASSERT_MDS_ORPHAN_WRITE_LOCKED(i) LASSERT_I_ALLOC_SEM_WRITE_LOCKED(i) #define MDS_PACK_MD_LOCK 1 -#else -#define MDS_UP_READ_ORPHAN_SEM(i) do { up(&(i)->i_sem); } while (0) -#define MDS_DOWN_READ_ORPHAN_SEM(i) do { down(&(i)->i_sem); } while (0) -#define LASSERT_MDS_ORPHAN_READ_LOCKED(i) LASSERT(down_trylock(&(i)->i_sem)!=0) - -#define MDS_UP_WRITE_ORPHAN_SEM(i) do { up(&(i)->i_sem); } while (0) -#define MDS_DOWN_WRITE_ORPHAN_SEM(i) do { down(&(i)->i_sem); } while (0) -#define LASSERT_MDS_ORPHAN_WRITE_LOCKED(i) LASSERT(down_trylock(&(i)->i_sem)!=0) -#define MDS_PACK_MD_LOCK 0 -#endif static inline int mds_orphan_open_count(struct inode *inode) {