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| author | Christian Brauner <brauner@kernel.org> | 2026-02-17 15:25:19 +0300 |
|---|---|---|
| committer | Christian Brauner <brauner@kernel.org> | 2026-02-17 15:25:19 +0300 |
| commit | 86566865986c4fa1963aace4ef5181501b2974c7 (patch) | |
| tree | 5fd52a0f494abd308febda70d96e449ba5620c83 /include/linux/backing-dev.h | |
| parent | 9702969978695d9a699a1f34771580cdbb153b33 (diff) | |
| parent | fd15b9c6ec8a3a6105a3295af52adea6d6e4cf59 (diff) | |
| download | linux-86566865986c4fa1963aace4ef5181501b2974c7.tar.xz | |
Merge patch series "Avoid filesystem references to writeback internals"
Kundan Kumar <kundan.kumar@samsung.com> says:
The series introduces writeback helper APIs and converts f2fs, gfs2
and nfs to stop accessing writeback internals directly.
As suggested by Christoph [1], filesystem code that directly accesses
writeback internals is split out:
[1] https://lore.kernel.org/all/20251015072912.GA11294@lst.de/
* patches from https://patch.msgid.link/20260213054634.79785-1-kundan.kumar@samsung.com:
nfs: stop using writeback internals for WB_WRITEBACK accounting
gfs2: stop using writeback internals for dirty_exceeded check
f2fs: stop using writeback internals for dirty_exceeded checks
writeback: prep helpers for dirty-limit and writeback accounting
Link: https://patch.msgid.link/20260213054634.79785-1-kundan.kumar@samsung.com
Signed-off-by: Christian Brauner <brauner@kernel.org>
Diffstat (limited to 'include/linux/backing-dev.h')
| -rw-r--r-- | include/linux/backing-dev.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/include/linux/backing-dev.h b/include/linux/backing-dev.h index 0c8342747cab..5b7d12b40d5e 100644 --- a/include/linux/backing-dev.h +++ b/include/linux/backing-dev.h @@ -136,6 +136,19 @@ static inline bool mapping_can_writeback(struct address_space *mapping) return inode_to_bdi(mapping->host)->capabilities & BDI_CAP_WRITEBACK; } +/* Must not be used by file systems that support cgroup writeback */ +static inline int bdi_wb_dirty_exceeded(struct backing_dev_info *bdi) +{ + return bdi->wb.dirty_exceeded; +} + +/* Must not be used by file systems that support cgroup writeback */ +static inline void bdi_wb_stat_mod(struct inode *inode, enum wb_stat_item item, + s64 amount) +{ + wb_stat_mod(&inode_to_bdi(inode)->wb, item, amount); +} + #ifdef CONFIG_CGROUP_WRITEBACK struct bdi_writeback *wb_get_lookup(struct backing_dev_info *bdi, |