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Commit b10a44c3 authored by Theodore Ts'o's avatar Theodore Ts'o
Browse files

ext4: add might_sleep() annotations 



Signed-off-by: default avatar"Theodore Ts'o" <tytso@mit.edu>
Reviewed-by: default avatarLukas Czerner <lczerner@redhat.com>
parent 19b5ef61

fs/ext4/ext4_jbd2.c

+6 −0
Original line number Diff line number Diff line
@@ -43,6 +43,8 @@ handle_t *__ext4_journal_start_sb(struct super_block *sb, unsigned int line, 
{

	journal_t *journal;



	might_sleep();



	trace_ext4_journal_start(sb, nblocks, _RET_IP_);

	if (sb->s_flags & MS_RDONLY)

		return ERR_PTR(-EROFS);
@@ -113,6 +115,8 @@ int __ext4_journal_get_write_access(const char *where, unsigned int line, 
{

	int err = 0;



	might_sleep();



	if (ext4_handle_valid(handle)) {

		err = jbd2_journal_get_write_access(handle, bh);

		if (err)
@@ -209,6 +213,8 @@ int __ext4_handle_dirty_metadata(const char *where, unsigned int line, 
{

	int err = 0;



	might_sleep();



	if (ext4_handle_valid(handle)) {

		err = jbd2_journal_dirty_metadata(handle, bh);

		if (err) {

fs/ext4/mballoc.c

+4 −0
Original line number Diff line number Diff line
@@ -1011,6 +1011,7 @@ int ext4_mb_init_group(struct super_block *sb, ext4_group_t group) 
	struct page *page;

	int ret = 0;



	might_sleep();

	mb_debug(1, "init group %u\n", group);

	this_grp = ext4_get_group_info(sb, group);

	/*
@@ -1082,6 +1083,7 @@ ext4_mb_load_buddy(struct super_block *sb, ext4_group_t group, 
	struct ext4_sb_info *sbi = EXT4_SB(sb);

	struct inode *inode = sbi->s_buddy_cache;



	might_sleep();

	mb_debug(1, "load group %u\n", group);



	blocks_per_page = PAGE_CACHE_SIZE / sb->s_blocksize;
@@ -4217,6 +4219,7 @@ ext4_fsblk_t ext4_mb_new_blocks(handle_t *handle, 
	unsigned int inquota = 0;

	unsigned int reserv_clstrs = 0;



	might_sleep();

	sb = ar->inode->i_sb;

	sbi = EXT4_SB(sb);
@@ -4470,6 +4473,7 @@ void ext4_free_blocks(handle_t *handle, struct inode *inode, 
	int err = 0;

	int ret;



	might_sleep();

	if (bh) {

		if (block)

			BUG_ON(block != bh->b_blocknr);