Commit aa261f54 authored by Andi Kleen's avatar Andi Kleen Committed by Andi Kleen
Browse files

HWPOISON: Enable .remove_error_page for migration aware file systems 



Enable removing of corrupted pages through truncation
for a bunch of file systems: ext*, xfs, gfs2, ocfs2, ntfs
These should cover most server needs.

I chose the set of migration aware file systems for this
for now, assuming they have been especially audited.
But in general it should be safe for all file systems
on the data area that support read/write and truncate.

Caveat: the hardware error handler does not take i_mutex
for now before calling the truncate function. Is that ok?

Cc: tytso@mit.edu
Cc: hch@infradead.org
Cc: mfasheh@suse.com
Cc: aia21@cantab.net
Cc: hugh.dickins@tiscali.co.uk
Cc: swhiteho@redhat.com
Signed-off-by: default avatarAndi Kleen <ak@linux.intel.com>
parent 6a46079c

fs/ext2/inode.c

+2 −0
Original line number Diff line number Diff line
@@ -819,6 +819,7 @@ const struct address_space_operations ext2_aops = { 
	.writepages		= ext2_writepages,

	.migratepage		= buffer_migrate_page,

	.is_partially_uptodate	= block_is_partially_uptodate,

	.error_remove_page	= generic_error_remove_page,

};



const struct address_space_operations ext2_aops_xip = {
@@ -837,6 +838,7 @@ const struct address_space_operations ext2_nobh_aops = { 
	.direct_IO		= ext2_direct_IO,

	.writepages		= ext2_writepages,

	.migratepage		= buffer_migrate_page,

	.error_remove_page	= generic_error_remove_page,

};



/*

fs/ext3/inode.c

+3 −0
Original line number Diff line number Diff line
@@ -1819,6 +1819,7 @@ static const struct address_space_operations ext3_ordered_aops = { 
	.direct_IO		= ext3_direct_IO,

	.migratepage		= buffer_migrate_page,

	.is_partially_uptodate  = block_is_partially_uptodate,

	.error_remove_page	= generic_error_remove_page,

};



static const struct address_space_operations ext3_writeback_aops = {
@@ -1834,6 +1835,7 @@ static const struct address_space_operations ext3_writeback_aops = { 
	.direct_IO		= ext3_direct_IO,

	.migratepage		= buffer_migrate_page,

	.is_partially_uptodate  = block_is_partially_uptodate,

	.error_remove_page	= generic_error_remove_page,

};



static const struct address_space_operations ext3_journalled_aops = {
@@ -1848,6 +1850,7 @@ static const struct address_space_operations ext3_journalled_aops = { 
	.invalidatepage		= ext3_invalidatepage,

	.releasepage		= ext3_releasepage,

	.is_partially_uptodate  = block_is_partially_uptodate,

	.error_remove_page	= generic_error_remove_page,

};



void ext3_set_aops(struct inode *inode)

fs/ext4/inode.c

+4 −0
Original line number Diff line number Diff line
@@ -3373,6 +3373,7 @@ static const struct address_space_operations ext4_ordered_aops = { 
	.direct_IO		= ext4_direct_IO,

	.migratepage		= buffer_migrate_page,

	.is_partially_uptodate  = block_is_partially_uptodate,

	.error_remove_page	= generic_error_remove_page,

};



static const struct address_space_operations ext4_writeback_aops = {
@@ -3388,6 +3389,7 @@ static const struct address_space_operations ext4_writeback_aops = { 
	.direct_IO		= ext4_direct_IO,

	.migratepage		= buffer_migrate_page,

	.is_partially_uptodate  = block_is_partially_uptodate,

	.error_remove_page	= generic_error_remove_page,

};



static const struct address_space_operations ext4_journalled_aops = {
@@ -3402,6 +3404,7 @@ static const struct address_space_operations ext4_journalled_aops = { 
	.invalidatepage		= ext4_invalidatepage,

	.releasepage		= ext4_releasepage,

	.is_partially_uptodate  = block_is_partially_uptodate,

	.error_remove_page	= generic_error_remove_page,

};



static const struct address_space_operations ext4_da_aops = {
@@ -3418,6 +3421,7 @@ static const struct address_space_operations ext4_da_aops = { 
	.direct_IO		= ext4_direct_IO,

	.migratepage		= buffer_migrate_page,

	.is_partially_uptodate  = block_is_partially_uptodate,

	.error_remove_page	= generic_error_remove_page,

};



void ext4_set_aops(struct inode *inode)

fs/gfs2/aops.c

+3 −0
Original line number Diff line number Diff line
@@ -1135,6 +1135,7 @@ static const struct address_space_operations gfs2_writeback_aops = { 
	.direct_IO = gfs2_direct_IO,

	.migratepage = buffer_migrate_page,

	.is_partially_uptodate = block_is_partially_uptodate,

	.error_remove_page = generic_error_remove_page,

};



static const struct address_space_operations gfs2_ordered_aops = {
@@ -1151,6 +1152,7 @@ static const struct address_space_operations gfs2_ordered_aops = { 
	.direct_IO = gfs2_direct_IO,

	.migratepage = buffer_migrate_page,

	.is_partially_uptodate = block_is_partially_uptodate,

	.error_remove_page = generic_error_remove_page,

};



static const struct address_space_operations gfs2_jdata_aops = {
@@ -1166,6 +1168,7 @@ static const struct address_space_operations gfs2_jdata_aops = { 
	.invalidatepage = gfs2_invalidatepage,

	.releasepage = gfs2_releasepage,

	.is_partially_uptodate = block_is_partially_uptodate,

	.error_remove_page = generic_error_remove_page,

};



void gfs2_set_aops(struct inode *inode)

fs/ntfs/aops.c

+2 −0
Original line number Diff line number Diff line
@@ -1550,6 +1550,7 @@ const struct address_space_operations ntfs_aops = { 
	.migratepage	= buffer_migrate_page,	/* Move a page cache page from

						   one physical page to an

						   other. */

	.error_remove_page = generic_error_remove_page,

};



/**
@@ -1569,6 +1570,7 @@ const struct address_space_operations ntfs_mst_aops = { 
	.migratepage	= buffer_migrate_page,	/* Move a page cache page from

						   one physical page to an

						   other. */

	.error_remove_page = generic_error_remove_page,

};



#ifdef NTFS_RW

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