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Speed up consecutive hostdisk operations on the same device.

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* util/hostdisk.c (struct grub_util_biosdisk_data): New structure.
(grub_util_biosdisk_open): Initialise disk->data.
(struct linux_partition_cache): New structure.
(linux_find_partition): Cache partition start positions; these are
expensive to compute on every read and write.
(open_device): Cache open file descriptor in disk->data, so that we
don't have to reopen it and flush the buffer cache for consecutive
operations on the same device.
(grub_util_biosdisk_close): New function.
(grub_util_biosdisk_dev): Set `close' member.

* conf/common.rmk (grub_probe_SOURCES): Add kern/list.c.
* conf/i386-efi.rmk (grub_setup_SOURCES): Likewise.
* conf/i386-pc.rmk (grub_setup_SOURCES): Likewise.
* conf/sparc64-ieee1275.rmk (grub_setup_SOURCES): Likewise.
* conf/x86_64-efi.rmk (grub_setup_SOURCES): Likewise.
This commit is contained in:
Colin Watson 2010-03-14 15:39:14 +00:00
commit 08e46ededa
7 changed files with 131 additions and 18 deletions
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2
conf/common.rmk
View file

@ -24,7 +24,7 @@ util/grub-probe.c_DEPENDENCIES = grub_probe_init.h
grub_probe_SOURCES = gnulib/progname.c util/grub-probe.c \
util/hostdisk.c util/misc.c util/getroot.c \
kern/device.c kern/disk.c kern/err.c kern/misc.c \
kern/parser.c kern/partition.c kern/file.c \
kern/parser.c kern/partition.c kern/file.c kern/list.c \
\
fs/affs.c fs/cpio.c fs/fat.c fs/ext2.c fs/hfs.c \
fs/hfsplus.c fs/iso9660.c fs/udf.c fs/jfs.c fs/minix.c \

2
conf/i386-efi.rmk
View file

@ -21,7 +21,7 @@ util/i386/efi/grub-mkimage.c_DEPENDENCIES = Makefile
# kern/err.c kern/misc.c fs/fat.c fs/ext2.c fs/xfs.c fs/affs.c \
# fs/sfs.c kern/parser.c kern/partition.c partmap/msdos.c \
# fs/ufs.c fs/ufs2.c fs/minix.c fs/hfs.c fs/jfs.c fs/hfsplus.c kern/file.c \
# kern/fs.c kern/env.c fs/fshelp.c
# kern/fs.c kern/env.c kern/list.c fs/fshelp.c
# Scripts.
sbin_SCRIPTS = grub-install

3
conf/i386-pc.rmk
View file

@ -96,7 +96,8 @@ grub_setup_SOURCES = gnulib/progname.c \
util/i386/pc/grub-setup.c util/hostdisk.c \
util/misc.c util/getroot.c kern/device.c kern/disk.c \
kern/err.c kern/misc.c kern/parser.c kern/partition.c \
kern/file.c kern/fs.c kern/env.c fs/fshelp.c \
kern/file.c kern/fs.c kern/env.c kern/list.c \
fs/fshelp.c \
\
fs/affs.c fs/cpio.c fs/ext2.c fs/fat.c fs/hfs.c \
fs/hfsplus.c fs/iso9660.c fs/udf.c fs/jfs.c fs/minix.c \

3
conf/sparc64-ieee1275.rmk
View file

@ -70,7 +70,8 @@ util/sparc64/ieee1275/grub-setup.c_DEPENDENCIES = grub_setup_init.h
grub_setup_SOURCES = util/sparc64/ieee1275/grub-setup.c util/hostdisk.c \
util/misc.c util/getroot.c kern/device.c kern/disk.c \
kern/err.c kern/misc.c kern/parser.c kern/partition.c \
kern/file.c kern/fs.c kern/env.c fs/fshelp.c \
kern/file.c kern/fs.c kern/env.c kern/list.c \
fs/fshelp.c \
\
fs/affs.c fs/cpio.c fs/ext2.c fs/fat.c fs/hfs.c \
fs/hfsplus.c fs/iso9660.c fs/udf.c fs/jfs.c fs/minix.c \

2
conf/x86_64-efi.rmk
View file

@ -20,7 +20,7 @@ grub_mkimage_SOURCES = gnulib/progname.c util/i386/efi/grub-mkimage.c \
# kern/err.c kern/misc.c fs/fat.c fs/ext2.c fs/xfs.c fs/affs.c \
# fs/sfs.c kern/parser.c kern/partition.c partmap/msdos.c \
# fs/ufs.c fs/ufs2.c fs/minix.c fs/hfs.c fs/jfs.c fs/hfsplus.c kern/file.c \
# kern/fs.c kern/env.c fs/fshelp.c
# kern/fs.c kern/env.c kern/list.c fs/fshelp.c
# Scripts.
sbin_SCRIPTS = grub-install