Function report |
Source Code:fs\namespace.c |
Create Date:2022-07-28 20:09:10 |
Last Modify:2020-03-12 14:18:49 | Copyright©Brick |
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Annotation kernel can get tool activity | Download SCCT | Chinese |
Name:sb_prepare_remount_readonly
Proto:int sb_prepare_remount_readonly(struct super_block *sb)
Type:int
Parameter:
Type | Parameter | Name |
---|---|---|
struct super_block * | sb |
515 | err = 0 |
518 | If atomic_long_read( & s_remove_count) Then Return -EBUSY |
521 | lock_mount_hash() |
523 | If Not (mnt_flags & does the user want this to be r/o? ) Then |
532 | If Not err && atomic_long_read( & s_remove_count) Then err = -EBUSY |
535 | If Not err Then |
536 | s_readonly_remount = 1 |
537 | smp_wmb() |
540 | If mnt_flags & MNT_WRITE_HOLD Then mnt_flags &= ~MNT_WRITE_HOLD |
543 | unlock_mount_hash() |
545 | Return err |
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