Andreas Gruenbacher 5d2c4f182e gfs2: fiemap page fault fix ...

[ Upstream commit e411d74cc5 ]

In gfs2_fiemap(), we are calling iomap_fiemap() while holding the inode
glock.  This can lead to recursive glock taking if the fiemap buffer is
memory mapped to the same inode and accessing it triggers a page fault.

Fix by disabling page faults for iomap_fiemap() and faulting in the
buffer by hand if necessary.

Fixes xfstest generic/742.

Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2026-03-04 07:20:52 -05:00

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acl.c

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acl.h

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aops.c

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aops.h

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bmap.c

gfs2: Fix use-after-free in iomap inline data write path

2026-03-04 07:19:23 -05:00

bmap.h

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dentry.c

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dir.c

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dir.h

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export.c

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file.c

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gfs2.h

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glock.c

gfs2: Retries missing in gfs2_{rename,exchange}

2026-03-04 07:19:23 -05:00

glock.h

gfs2: Retries missing in gfs2_{rename,exchange}

2026-03-04 07:19:23 -05:00

glops.c

gfs2: fix remote evict for read-only filesystems

2026-01-08 10:13:58 +01:00

glops.h

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incore.h

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inode.c

gfs2: fiemap page fault fix

2026-03-04 07:20:52 -05:00

inode.h

gfs2: Prevent recursive memory reclaim

2025-12-18 13:55:08 +01:00

Kconfig

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lock_dlm.c

gfs2: Fix unlikely race in gdlm_put_lock

2025-10-29 14:08:52 +01:00

log.c

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log.h

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lops.c

Revert "gfs2: Fix use of bio_chain"

2026-01-23 11:18:35 +01:00

lops.h

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main.c

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Makefile

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meta_io.c

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meta_io.h

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ops_fstype.c

gfs2: Prevent recursive memory reclaim

2025-12-18 13:55:08 +01:00

quota.c

gfs2: Fix slab-use-after-free in qd_put

2026-03-04 07:19:23 -05:00

quota.h

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recovery.c

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recovery.h

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rgrp.c

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rgrp.h

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super.c

gfs2: fix freeze error handling

2026-01-08 10:14:56 +01:00

super.h

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sys.c

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sys.h

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trace_gfs2.h

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trans.c

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trans.h

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util.c

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util.h

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xattr.c

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xattr.h

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