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authorJohannes Thumshirn <johannes.thumshirn@wdc.com>2020-09-11 17:56:48 +0900
committerDamien Le Moal <damien.lemoal@wdc.com>2020-09-15 18:32:40 +0900
commit5498d5f93210ab4c55cd191473c8f4a59cc68e8e (patch)
tree847b02713bf6ba9a6aad67764b3fc690a3e944d5 /fs/zonefs
parentd012a7190fc1fd72ed48911e77ca97ba4521bccd (diff)
zonefs: introduce helper for zone management
Introduce a helper function for sending zone management commands to the block device. As zone management commands can change a zone write pointer position reflected in the size of the zone file, this function expects the truncate mutex to be held. Signed-off-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Reviewed-by: Damien Le Moal <damien.lemoal@wdc.com> Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Diffstat (limited to 'fs/zonefs')
-rw-r--r--fs/zonefs/super.c29
1 files changed, 22 insertions, 7 deletions
diff --git a/fs/zonefs/super.c b/fs/zonefs/super.c
index 8ec7c8f109d7..6e13a5127b01 100644
--- a/fs/zonefs/super.c
+++ b/fs/zonefs/super.c
@@ -24,6 +24,26 @@
#include "zonefs.h"
+static inline int zonefs_zone_mgmt(struct inode *inode,
+ enum req_opf op)
+{
+ struct zonefs_inode_info *zi = ZONEFS_I(inode);
+ int ret;
+
+ lockdep_assert_held(&zi->i_truncate_mutex);
+
+ ret = blkdev_zone_mgmt(inode->i_sb->s_bdev, op, zi->i_zsector,
+ zi->i_zone_size >> SECTOR_SHIFT, GFP_NOFS);
+ if (ret) {
+ zonefs_err(inode->i_sb,
+ "Zone management operation %s at %llu failed %d\n",
+ blk_op_str(op), zi->i_zsector, ret);
+ return ret;
+ }
+
+ return 0;
+}
+
static int zonefs_iomap_begin(struct inode *inode, loff_t offset, loff_t length,
unsigned int flags, struct iomap *iomap,
struct iomap *srcmap)
@@ -397,14 +417,9 @@ static int zonefs_file_truncate(struct inode *inode, loff_t isize)
if (isize == old_isize)
goto unlock;
- ret = blkdev_zone_mgmt(inode->i_sb->s_bdev, op, zi->i_zsector,
- zi->i_zone_size >> SECTOR_SHIFT, GFP_NOFS);
- if (ret) {
- zonefs_err(inode->i_sb,
- "Zone management operation at %llu failed %d",
- zi->i_zsector, ret);
+ ret = zonefs_zone_mgmt(inode, op);
+ if (ret)
goto unlock;
- }
zonefs_update_stats(inode, isize);
truncate_setsize(inode, isize);