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| author | Yunlei He <heyunlei@huawei.com> | 2016-11-07 21:22:31 +0800 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2016-11-23 12:11:31 -0800 |
| commit | 206147112860418fa9363cf94ec2c172bdf4313a (patch) | |
| tree | 3927ece3420d68adc962ad3a954a635adc7d6489 /fs/f2fs/gc.c | |
| parent | d47b8715953ad0cf82bb0a9d30d7b11d83bc9c11 (diff) | |
| download | linux-0-day-206147112860418fa9363cf94ec2c172bdf4313a.tar.gz linux-0-day-206147112860418fa9363cf94ec2c172bdf4313a.tar.xz | |
f2fs: return directly if block has been removed from the victim
If one block has been to written to a new place, just return
in move data process. This patch check it again with holding
page lock.
Signed-off-by: Yunlei He <heyunlei@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/gc.c')
| -rw-r--r-- | fs/f2fs/gc.c | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c index 9c189171b89c7..a7b2c13404f8d 100644 --- a/fs/f2fs/gc.c +++ b/fs/f2fs/gc.c @@ -544,7 +544,8 @@ static bool is_alive(struct f2fs_sb_info *sbi, struct f2fs_summary *sum, return true; } -static void move_encrypted_block(struct inode *inode, block_t bidx) +static void move_encrypted_block(struct inode *inode, block_t bidx, + unsigned int segno, int off) { struct f2fs_io_info fio = { .sbi = F2FS_I_SB(inode), @@ -565,6 +566,9 @@ static void move_encrypted_block(struct inode *inode, block_t bidx) if (!page) return; + if (!check_valid_map(F2FS_I_SB(inode), segno, off)) + goto out; + set_new_dnode(&dn, inode, NULL, NULL, 0); err = get_dnode_of_data(&dn, bidx, LOOKUP_NODE); if (err) @@ -645,7 +649,8 @@ out: f2fs_put_page(page, 1); } -static void move_data_page(struct inode *inode, block_t bidx, int gc_type) +static void move_data_page(struct inode *inode, block_t bidx, int gc_type, + unsigned int segno, int off) { struct page *page; @@ -653,6 +658,9 @@ static void move_data_page(struct inode *inode, block_t bidx, int gc_type) if (IS_ERR(page)) return; + if (!check_valid_map(F2FS_I_SB(inode), segno, off)) + goto out; + if (gc_type == BG_GC) { if (PageWriteback(page)) goto out; @@ -796,9 +804,9 @@ next_step: start_bidx = start_bidx_of_node(nofs, inode) + ofs_in_node; if (f2fs_encrypted_inode(inode) && S_ISREG(inode->i_mode)) - move_encrypted_block(inode, start_bidx); + move_encrypted_block(inode, start_bidx, segno, off); else - move_data_page(inode, start_bidx, gc_type); + move_data_page(inode, start_bidx, gc_type, segno, off); if (locked) { up_write(&fi->dio_rwsem[WRITE]); |