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grub/grub-core
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Goffredo Baroncelli fd5a1d82f1 btrfs: Avoid a rescan for a device which was already not found 
Currently read from missing device triggers rescan. However, it is never
recorded that the device is missing. So, each read of a missing device
triggers rescan again and again. This behavior causes a lot of unneeded
rescans leading to huge slowdowns.

This patch fixes above mentioned issue. Information about missing devices
is stored in the data->devices_attached[] array as NULL value in dev
member. Rescan is triggered only if no information is found for a given
device. This means that only first time read triggers rescan.

The patch drops premature return. This way data->devices_attached[] is
filled even when a given device is missing.

Signed-off-by: Goffredo Baroncelli <kreikack@inwind.it>
Signed-off-by: Daniel Kiper <daniel.kiper@oracle.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
2018-10-31 11:44:55 +01:00
..
boot diskboot: Trivial correction on stale comments 2018-04-23 13:04:58 +02:00
bus ehci: Fix compilation on i386 2017-07-09 21:31:19 +02:00
commands commands/file: Use definitions from arm64/linux.h 2018-07-11 12:02:18 +02:00
disk ahci: Increase time-out from 10 s to 32 s 2018-09-13 10:54:54 +02:00
efiemu x86-64: Treat R_X86_64_PLT32 as R_X86_64_PC32 2018-02-23 22:25:30 +01:00
font Document intentional fallthroughs. 2015-01-27 17:17:58 +01:00
fs btrfs: Avoid a rescan for a device which was already not found 2018-10-31 11:44:55 +01:00
gdb i386, x86_64, ppc: fix switch fallthrough cases with GCC7 2017-04-04 19:23:55 +03:00
gettext * grub-core/gettext/gettext.c (main_context), (secondary_context): 2013-11-07 01:01:47 +01:00
gfxmenu gfxmenu: fix memory leak 2016-01-12 21:52:50 +03:00
gnulib i386, x86_64, ppc: fix switch fallthrough cases with GCC7 2017-04-04 19:23:55 +03:00
hello * grub-core/commands/gptsync.c: Fix typographic quoting. 2012-03-03 13:05:08 +01:00
hook * grub-core/hook/datehook.c (grub_read_hook_datetime): Small stylistic 2011-11-11 21:03:49 +01:00
io bufio: Round up block size to power of 2 2018-05-08 12:28:18 +02:00
kern arm: Delete unused efi support from loader/arm 2018-07-25 14:18:11 +02:00
lib relocator16: Comments update 2018-09-13 10:58:32 +02:00
loader linux16: Code cleanup 2018-09-13 10:51:34 +02:00
mmap Translate UEFI persistent memory type 2015-12-15 10:25:34 +03:00
net ofnet: Initialize structs in bootpath parser 2018-09-13 11:03:05 +02:00
normal core: use GRUB_TERM_ definitions when handling term characters 2017-08-07 19:28:22 +02:00
osdep osdep/linux: Convert partition start to disk sector length 2018-09-27 14:53:32 +02:00
partmap msdos: Fix overflow in converting partition start and length into 512B blocks 2018-09-27 14:56:45 +02:00
parttool * grub-core/net/http.c: Add TRANSLATORS comments. 2012-03-05 16:42:26 +01:00
script yylex: Explicilty cast fprintf to void. 2017-08-14 14:11:43 +02:00
term efi/console: Fix the "enter" key not working on x86 tablets 2018-07-11 11:53:28 +02:00
tests Regenerate checksum.h with newer unifont. 2017-08-30 17:12:04 +02:00
video efi/uga: Fix PCIe LER when GRUB2 accesses non-enabled MMIO data from VGA 2018-04-04 21:48:52 +02:00
gdb_grub.in * grub-core/gdb_grub.in: Fix overflow and wrong field. 2013-10-14 03:40:20 +02:00
genemuinit.sh use MODULE_FILES for genemuinit* instead of MOD_FILES 2014-01-18 23:15:40 +04:00
genemuinitheader.sh use MODULE_FILES for genemuinit* instead of MOD_FILES 2014-01-18 23:15:40 +04:00
genmod.sh.in .mod files: Strip annobin annotations and .eh_frame, and their relocations 2018-03-05 14:08:22 +01:00
genmoddep.awk enforcing fixup 2017-08-14 16:27:10 +02:00
gensyminfo.sh.in Fix shebang for termux. 2017-05-03 12:49:31 +02:00
gensymlist.sh Make 'make check' work on emu. 2013-04-27 02:00:16 +02:00
gentrigtables.c * grub-core/gentrigtables.c: Make tables const. 2013-03-01 11:15:09 +01:00
gmodule.pl.in * grub-core/gmodule.pl.in: Accept newer binutils which output 2014-09-21 18:23:23 +02:00
gnulib-fix-gcc7-fallthrough.diff Add gnulib-fix-gcc7-fallthrough.diff 2017-04-04 19:37:47 +03:00
gnulib-fix-null-deref.diff Import new gnulib. 2013-04-11 21:12:46 +02:00
gnulib-fix-width.diff Import new gnulib. 2013-04-11 21:12:46 +02:00
gnulib-no-abort.diff Import new gnulib. 2013-04-11 21:12:46 +02:00
gnulib-no-gets.diff Import new gnulib. 2013-04-11 21:12:46 +02:00
Makefile.am arm: Delete unused efi support from loader/arm 2018-07-25 14:18:11 +02:00
Makefile.core.def arm/efi: Switch to arm64 linux loader 2018-07-25 14:18:11 +02:00
modinfo.sh.in Fix shebang for termux. 2017-05-03 12:49:31 +02:00