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add3efdd78b8a0478ce423bb9d4df6bd95e8b335
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Jan Kara add3efdd78 jbd2: Fix possible overflow in jbd2_log_space_left() 
When number of free space in the journal is very low, the arithmetic in
jbd2_log_space_left() could underflow resulting in very high number of
free blocks and thus triggering assertion failure in transaction commit
code complaining there's not enough space in the journal:

J_ASSERT(journal->j_free > 1);

Properly check for the low number of free blocks.

CC: stable@vger.kernel.org
Reviewed-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20191105164437.32602-1-jack@suse.cz
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2019-11-05 12:13:25 -05:00
..
acpi
Merge tag 'acpi-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
2019-09-17 19:31:36 -07:00
asm-generic
Merge branch 'next-lockdown' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
2019-09-28 08:14:15 -07:00
clocksource
clocksource/drivers/hyperv: Enable TSC page clocksource on 32bit
2019-08-23 16:59:54 +02:00
crypto
Merge branch 'next-integrity' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity
2019-09-27 19:37:27 -07:00
drm
drm: Measure Self Refresh Entry/Exit times to avoid thrashing
2019-09-19 10:03:32 -04:00
dt-bindings
Merge tag 'mips_5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux
2019-09-22 09:30:30 -07:00
keys
Merge tag 'keys-request-20190626' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs
2019-07-08 19:19:37 -07:00
kvm
KVM: arm/arm64: vgic: Use a single IO device per redistributor
2019-08-25 11:02:52 +01:00
linux
jbd2: Fix possible overflow in jbd2_log_space_left()
2019-11-05 12:13:25 -05:00
math-emu
nds32: Mark expected switch fall-throughs
2019-08-29 11:06:56 -05:00
media
media: v4l2-core: introduce a helper to unregister a i2c subdev
2019-08-26 10:52:06 -03:00
misc
auxdisplay: charlcd: move charlcd.h to drivers/auxdisplay
2019-08-08 19:59:17 +02:00
net
Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf
2019-09-27 20:15:00 +02:00
pcmcia
Merge tag 'docs-5.3' of git://git.lwn.net/linux
2019-07-09 12:34:26 -07:00
ras
…
rdma
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma
2019-09-21 10:26:24 -07:00
scsi
Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
2019-09-21 10:50:15 -07:00
soc
Merge tag 'char-misc-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
2019-09-18 11:14:31 -07:00
sound
Merge tag 'asoc-v5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-next
2019-09-10 13:03:08 +02:00
target
…
trace
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2019-10-05 08:50:15 -07:00
uapi
Merge tag 'tty-5.4-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
2019-10-12 15:42:19 -07:00
vdso
…
video
fbdev: da8xx: remove panel_power_ctrl() callback from platform data
2019-08-26 17:53:58 +05:30
xen
Merge tag 'for-linus-5.4-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
2019-10-04 11:13:09 -07:00
Kbuild
Merge tag 'mfd-next-5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd
2019-09-23 19:37:49 -07:00