Linux 4.12 compat: super_setup_bdi_name() #6089
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behlendorf
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@behlendorf, thanks for your PR! By analyzing the history of the files in this pull request, we identified @dechamps, @chrisrd and @gmelikov to be potential reviewers. |
tuxoko
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May 1, 2017
config/kernel-bdi.m4
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| dnl # 2.6.32 - 2.6.33, bdi_setup_and_register() is not exported. | ||
| dnl # 2.6.34 - 3.19, bdi_setup_and_register() takes 3 arguments. | ||
| dnl # 4.0 - 4.10, bdi_setup_and_register() takes 2 arguments. | ||
| dnl # 4.11 - x.y, super_setup_bdi_name() new interface. |
module/zfs/zfs_vfsops.c
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| @@ -1606,9 +1607,8 @@ zfs_domount(struct super_block *sb, zfs_mnt_t *zm, int silent) | |||
| sb->s_blocksize = recordsize; | |||
| sb->s_blocksize_bits = ilog2(recordsize); | |||
| zfsvfs->z_bdi.ra_pages = 0; | |||
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Do we need to modify sb->s_bdi->ra_pages for 4.12+?
Also, we may want to get rid of z_bdi to save space.
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@tuxoko good points, how about this. The updated patch refactors the code such that all backing_dev_info struct management is handled in the wrapper functions. After a successful call to |
tuxoko
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May 2, 2017
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One nit, the commit title should be 4.12 |
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Indeed, I'll fix it in the merge unless I need to refresh this for other reasons. Thanks. |
All filesystems were converted to dynamically allocated BDIs. The destruction of backing_dev_info structures is handled as part of super block destruction. Refactor the code to abstract away the details of seting up and destroying an sbi. Reviewed-by: Chunwei Chen <david.chen@osnexus.com> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
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tonyhutter
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Jun 5, 2017
All filesystems were converted to dynamically allocated BDIs. The destruction of backing_dev_info structures is handled as part of super block destruction. Refactor the code to abstract away the details of creating and destroying a BDI. Reviewed-by: Chunwei Chen <david.chen@osnexus.com> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes openzfs#6089
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All filesystems were converted to dynamically allocated BDIs. The destruction of backing_dev_info structures is handled as part of super block destruction. Refactor the code to abstract away the details of creating and destroying a BDI. Reviewed-by: Chunwei Chen <david.chen@osnexus.com> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #6089
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Jul 10, 2017
This includes code that was mistakenly left out of the 7dae2c8 merge into 0.6.5.10. Its inclusion fixes a kernel warning on Kubuntu 17.04: WARN_ON(sb->s_bdi != &noop_backing_dev_info); Reviewed-by: Chunwei Chen <david.chen@osnexus.com> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes openzfs#6089 Closes openzfs#6324 (backported from zfs upstream commit 7dae2c8) Signed-off-by: Colin Ian King <colin.king@canonical.com>
tonyhutter
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This includes code that was mistakenly left out of the 7dae2c8 merge into 0.6.5.10. Its inclusion fixes a kernel warning on Kubuntu 17.04: WARN_ON(sb->s_bdi != &noop_backing_dev_info); Reviewed-by: Chunwei Chen <david.chen@osnexus.com> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes openzfs#6089 Closes openzfs#6324 (backported from zfs upstream commit 7dae2c8) Signed-off-by: Colin Ian King <colin.king@canonical.com>
tonyhutter
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This includes code that was mistakenly left out of the 7dae2c8 merge into 0.6.5.10. Its inclusion fixes a kernel warning on Kubuntu 17.04: WARN_ON(sb->s_bdi != &noop_backing_dev_info); Reviewed-by: Chunwei Chen <david.chen@osnexus.com> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #6089 Closes #6324 (backported from zfs upstream commit 7dae2c8) Signed-off-by: Colin Ian King <colin.king@canonical.com>
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All filesystems were converted to dynamically allocated BDIs. The
destruction of backing_dev_info structures is handled as part of
super block destruction.